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Finding the Fourth Proportional to 425,946.38, 638,733.12 and 159,520.07

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Solution

The fourth proportional to 425,946.38, 638,733.12 and 159,520.07 is: 239,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,946.38 : 638,733.12 = 159,520.07 : x
  2. Step 2: Convert to fraction form
    425,946.38/638,733.12 = 159,520.07/x
  3. Step 3: Cross multiply
    425,946.38x = 638,733.12 × 159,520.07
  4. Step 4: Simplify right side
    425,946.38x = 101,890,748,820.05
  5. Step 5: Solve for x
    x = 101,890,748,820.05/425,946.38
  6. Step 6: Final answer
    x = 239,210.27

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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.