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Finding the Fourth Proportional to 354,127.50, 488,695.95 and 195,151.50

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Solution

The fourth proportional to 354,127.50, 488,695.95 and 195,151.50 is: 269,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,127.50 : 488,695.95 = 195,151.50 : x
  2. Step 2: Convert to fraction form
    354,127.50/488,695.95 = 195,151.50/x
  3. Step 3: Cross multiply
    354,127.50x = 488,695.95 × 195,151.50
  4. Step 4: Simplify right side
    354,127.50x = 95,369,747,686.43
  5. Step 5: Solve for x
    x = 95,369,747,686.43/354,127.50
  6. Step 6: Final answer
    x = 269,309.07

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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.