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Finding the Fourth Proportional to 440.13, 607.38 and 243.66

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Solution

The fourth proportional to 440.13, 607.38 and 243.66 is: 336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.13 : 607.38 = 243.66 : x
  2. Step 2: Convert to fraction form
    440.13/607.38 = 243.66/x
  3. Step 3: Cross multiply
    440.13x = 607.38 × 243.66
  4. Step 4: Simplify right side
    440.13x = 147,994.21
  5. Step 5: Solve for x
    x = 147,994.21/440.13
  6. Step 6: Final answer
    x = 336.25

Related Problems

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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.