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Finding the Fourth Proportional to 289,500.76, 399,527.00 and 160,436.52

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Solution

The fourth proportional to 289,500.76, 399,527.00 and 160,436.52 is: 221,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,500.76 : 399,527.00 = 160,436.52 : x
  2. Step 2: Convert to fraction form
    289,500.76/399,527.00 = 160,436.52/x
  3. Step 3: Cross multiply
    289,500.76x = 399,527.00 × 160,436.52
  4. Step 4: Simplify right side
    289,500.76x = 64,098,721,325.49
  5. Step 5: Solve for x
    x = 64,098,721,325.49/289,500.76
  6. Step 6: Final answer
    x = 221,411.24

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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.