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Finding the Fourth Proportional to 614.36, 848.20 and 474.22

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Solution

The fourth proportional to 614.36, 848.20 and 474.22 is: 654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.36 : 848.20 = 474.22 : x
  2. Step 2: Convert to fraction form
    614.36/848.20 = 474.22/x
  3. Step 3: Cross multiply
    614.36x = 848.20 × 474.22
  4. Step 4: Simplify right side
    614.36x = 402,233.40
  5. Step 5: Solve for x
    x = 402,233.40/614.36
  6. Step 6: Final answer
    x = 654.72

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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.