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Finding the Fourth Proportional to 418,641.78, 577,708.21 and 237,365.96

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Solution

The fourth proportional to 418,641.78, 577,708.21 and 237,365.96 is: 327,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,641.78 : 577,708.21 = 237,365.96 : x
  2. Step 2: Convert to fraction form
    418,641.78/577,708.21 = 237,365.96/x
  3. Step 3: Cross multiply
    418,641.78x = 577,708.21 × 237,365.96
  4. Step 4: Simplify right side
    418,641.78x = 137,128,263,866.53
  5. Step 5: Solve for x
    x = 137,128,263,866.53/418,641.78
  6. Step 6: Final answer
    x = 327,555.13

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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.