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Finding the Fourth Proportional to 615.22, 848.12 and 440.26

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Solution

The fourth proportional to 615.22, 848.12 and 440.26 is: 606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.22 : 848.12 = 440.26 : x
  2. Step 2: Convert to fraction form
    615.22/848.12 = 440.26/x
  3. Step 3: Cross multiply
    615.22x = 848.12 × 440.26
  4. Step 4: Simplify right side
    615.22x = 373,393.31
  5. Step 5: Solve for x
    x = 373,393.31/615.22
  6. Step 6: Final answer
    x = 606.93

Related Problems

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Half scale
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Double scale
Find fourth proportional to 616.22, 849.50 and 441.26
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.