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Finding the Fourth Proportional to 415,153.92, 572,918.76 and 245,403.84

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Solution

The fourth proportional to 415,153.92, 572,918.76 and 245,403.84 is: 338,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,153.92 : 572,918.76 = 245,403.84 : x
  2. Step 2: Convert to fraction form
    415,153.92/572,918.76 = 245,403.84/x
  3. Step 3: Cross multiply
    415,153.92x = 572,918.76 × 245,403.84
  4. Step 4: Simplify right side
    415,153.92x = 140,596,463,712.04
  5. Step 5: Solve for x
    x = 140,596,463,712.04/415,153.92
  6. Step 6: Final answer
    x = 338,661.05

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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.