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Finding the Fourth Proportional to 536,648.40, 805,000.16 and 137,292.62

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Solution

The fourth proportional to 536,648.40, 805,000.16 and 137,292.62 is: 205,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,648.40 : 805,000.16 = 137,292.62 : x
  2. Step 2: Convert to fraction form
    536,648.40/805,000.16 = 137,292.62/x
  3. Step 3: Cross multiply
    536,648.40x = 805,000.16 × 137,292.62
  4. Step 4: Simplify right side
    536,648.40x = 110,520,577,385.05
  5. Step 5: Solve for x
    x = 110,520,577,385.05/536,648.40
  6. Step 6: Final answer
    x = 205,945.97

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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.