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Finding the Fourth Proportional to 508,631.76, 762,788.88 and 176,130

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Solution

The fourth proportional to 508,631.76, 762,788.88 and 176,130 is: 264,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,631.76 : 762,788.88 = 176,130 : x
  2. Step 2: Convert to fraction form
    508,631.76/762,788.88 = 176,130/x
  3. Step 3: Cross multiply
    508,631.76x = 762,788.88 × 176,130
  4. Step 4: Simplify right side
    508,631.76x = 134,350,005,434.40
  5. Step 5: Solve for x
    x = 134,350,005,434.40/508,631.76
  6. Step 6: Final answer
    x = 264,140.02

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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.