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Finding the Fourth Proportional to 355,521.96, 532,722.42 and 130,572

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Solution

The fourth proportional to 355,521.96, 532,722.42 and 130,572 is: 195,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,521.96 : 532,722.42 = 130,572 : x
  2. Step 2: Convert to fraction form
    355,521.96/532,722.42 = 130,572/x
  3. Step 3: Cross multiply
    355,521.96x = 532,722.42 × 130,572
  4. Step 4: Simplify right side
    355,521.96x = 69,558,631,824.24
  5. Step 5: Solve for x
    x = 69,558,631,824.24/355,521.96
  6. Step 6: Final answer
    x = 195,652.14

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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.