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Finding the Fourth Proportional to 536,756.13, 805,115.72 and 137,400.35

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Solution

The fourth proportional to 536,756.13, 805,115.72 and 137,400.35 is: 206,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,756.13 : 805,115.72 = 137,400.35 : x
  2. Step 2: Convert to fraction form
    536,756.13/805,115.72 = 137,400.35/x
  3. Step 3: Cross multiply
    536,756.13x = 805,115.72 × 137,400.35
  4. Step 4: Simplify right side
    536,756.13x = 110,623,177,005.92
  5. Step 5: Solve for x
    x = 110,623,177,005.92/536,756.13
  6. Step 6: Final answer
    x = 206,095.79

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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.