Home / 312,946.38-469,484.91-102,567.78

Finding the Fourth Proportional to 312,946.38, 469,484.91 and 102,567.78

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Solution

The fourth proportional to 312,946.38, 469,484.91 and 102,567.78 is: 153,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,946.38 : 469,484.91 = 102,567.78 : x
  2. Step 2: Convert to fraction form
    312,946.38/469,484.91 = 102,567.78/x
  3. Step 3: Cross multiply
    312,946.38x = 469,484.91 × 102,567.78
  4. Step 4: Simplify right side
    312,946.38x = 48,154,024,962.20
  5. Step 5: Solve for x
    x = 48,154,024,962.20/312,946.38
  6. Step 6: Final answer
    x = 153,873.09

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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.