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Finding the Fourth Proportional to 509,305.60, 763,400.40 and 256,182.40

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Solution

The fourth proportional to 509,305.60, 763,400.40 and 256,182.40 is: 383,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,305.60 : 763,400.40 = 256,182.40 : x
  2. Step 2: Convert to fraction form
    509,305.60/763,400.40 = 256,182.40/x
  3. Step 3: Cross multiply
    509,305.60x = 763,400.40 × 256,182.40
  4. Step 4: Simplify right side
    509,305.60x = 195,569,746,632.96
  5. Step 5: Solve for x
    x = 195,569,746,632.96/509,305.60
  6. Step 6: Final answer
    x = 383,992.92

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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.