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Finding the Fourth Proportional to 426,411.92, 639,501.12 and 160,151.84

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Solution

The fourth proportional to 426,411.92, 639,501.12 and 160,151.84 is: 240,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,411.92 : 639,501.12 = 160,151.84 : x
  2. Step 2: Convert to fraction form
    426,411.92/639,501.12 = 160,151.84/x
  3. Step 3: Cross multiply
    426,411.92x = 639,501.12 × 160,151.84
  4. Step 4: Simplify right side
    426,411.92x = 102,417,281,050.06
  5. Step 5: Solve for x
    x = 102,417,281,050.06/426,411.92
  6. Step 6: Final answer
    x = 240,183.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.