Home / 347,918.18-521,712.78-134,785.94

Finding the Fourth Proportional to 347,918.18, 521,712.78 and 134,785.94

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Solution

The fourth proportional to 347,918.18, 521,712.78 and 134,785.94 is: 202,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,918.18 : 521,712.78 = 134,785.94 : x
  2. Step 2: Convert to fraction form
    347,918.18/521,712.78 = 134,785.94/x
  3. Step 3: Cross multiply
    347,918.18x = 521,712.78 × 134,785.94
  4. Step 4: Simplify right side
    347,918.18x = 70,319,547,462.31
  5. Step 5: Solve for x
    x = 70,319,547,462.31/347,918.18
  6. Step 6: Final answer
    x = 202,115.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.