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Finding the Fourth Proportional to 630,095.29, 945,143.13 and 156,780.65

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Solution

The fourth proportional to 630,095.29, 945,143.13 and 156,780.65 is: 235,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,095.29 : 945,143.13 = 156,780.65 : x
  2. Step 2: Convert to fraction form
    630,095.29/945,143.13 = 156,780.65/x
  3. Step 3: Cross multiply
    630,095.29x = 945,143.13 × 156,780.65
  4. Step 4: Simplify right side
    630,095.29x = 148,180,153,480.53
  5. Step 5: Solve for x
    x = 148,180,153,480.53/630,095.29
  6. Step 6: Final answer
    x = 235,171.02

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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.