Home / 385,292.16-531,723.84-215,516.16

Finding the Fourth Proportional to 385,292.16, 531,723.84 and 215,516.16

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Solution

The fourth proportional to 385,292.16, 531,723.84 and 215,516.16 is: 297,423.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,292.16 : 531,723.84 = 215,516.16 : x
  2. Step 2: Convert to fraction form
    385,292.16/531,723.84 = 215,516.16/x
  3. Step 3: Cross multiply
    385,292.16x = 531,723.84 × 215,516.16
  4. Step 4: Simplify right side
    385,292.16x = 114,595,080,177.25
  5. Step 5: Solve for x
    x = 114,595,080,177.25/385,292.16
  6. Step 6: Final answer
    x = 297,423.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.