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Finding the Fourth Proportional to 652,145.30, 978,217.95 and 178,829.90

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Solution

The fourth proportional to 652,145.30, 978,217.95 and 178,829.90 is: 268,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,145.30 : 978,217.95 = 178,829.90 : x
  2. Step 2: Convert to fraction form
    652,145.30/978,217.95 = 178,829.90/x
  3. Step 3: Cross multiply
    652,145.30x = 978,217.95 × 178,829.90
  4. Step 4: Simplify right side
    652,145.30x = 174,934,618,176.71
  5. Step 5: Solve for x
    x = 174,934,618,176.71/652,145.30
  6. Step 6: Final answer
    x = 268,244.85

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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.