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Finding the Fourth Proportional to 500,158.45, 750,311.48 and 145,126.32

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Solution

The fourth proportional to 500,158.45, 750,311.48 and 145,126.32 is: 217,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,158.45 : 750,311.48 = 145,126.32 : x
  2. Step 2: Convert to fraction form
    500,158.45/750,311.48 = 145,126.32/x
  3. Step 3: Cross multiply
    500,158.45x = 750,311.48 × 145,126.32
  4. Step 4: Simplify right side
    500,158.45x = 108,889,943,946.15
  5. Step 5: Solve for x
    x = 108,889,943,946.15/500,158.45
  6. Step 6: Final answer
    x = 217,710.90

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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.