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Finding the Fourth Proportional to 253,515.08, 349,850.92 and 138,801.16

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Solution

The fourth proportional to 253,515.08, 349,850.92 and 138,801.16 is: 191,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,515.08 : 349,850.92 = 138,801.16 : x
  2. Step 2: Convert to fraction form
    253,515.08/349,850.92 = 138,801.16/x
  3. Step 3: Cross multiply
    253,515.08x = 349,850.92 × 138,801.16
  4. Step 4: Simplify right side
    253,515.08x = 48,559,712,829.06
  5. Step 5: Solve for x
    x = 48,559,712,829.06/253,515.08
  6. Step 6: Final answer
    x = 191,545.66

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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.