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Finding the Fourth Proportional to 253,192.50, 349,391.49 and 138,448.35

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Solution

The fourth proportional to 253,192.50, 349,391.49 and 138,448.35 is: 191,050.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,192.50 : 349,391.49 = 138,448.35 : x
  2. Step 2: Convert to fraction form
    253,192.50/349,391.49 = 138,448.35/x
  3. Step 3: Cross multiply
    253,192.50x = 349,391.49 × 138,448.35
  4. Step 4: Simplify right side
    253,192.50x = 48,372,675,294.54
  5. Step 5: Solve for x
    x = 48,372,675,294.54/253,192.50
  6. Step 6: Final answer
    x = 191,050.98

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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.