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Finding the Fourth Proportional to 253,608, 349,976.54 and 137,320.92

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Solution

The fourth proportional to 253,608, 349,976.54 and 137,320.92 is: 189,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,608 : 349,976.54 = 137,320.92 : x
  2. Step 2: Convert to fraction form
    253,608/349,976.54 = 137,320.92/x
  3. Step 3: Cross multiply
    253,608x = 349,976.54 × 137,320.92
  4. Step 4: Simplify right side
    253,608x = 48,059,099,764.61
  5. Step 5: Solve for x
    x = 48,059,099,764.61/253,608
  6. Step 6: Final answer
    x = 189,501.51

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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.