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Finding the Fourth Proportional to 432,865.65, 649,298.48 and 243,908.85

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Solution

The fourth proportional to 432,865.65, 649,298.48 and 243,908.85 is: 365,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,865.65 : 649,298.48 = 243,908.85 : x
  2. Step 2: Convert to fraction form
    432,865.65/649,298.48 = 243,908.85/x
  3. Step 3: Cross multiply
    432,865.65x = 649,298.48 × 243,908.85
  4. Step 4: Simplify right side
    432,865.65x = 158,369,644,344.00
  5. Step 5: Solve for x
    x = 158,369,644,344.00/432,865.65
  6. Step 6: Final answer
    x = 365,863.28

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Similar ratio
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1.5x scale

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.