Home / 379,475.12-523,686.50-207,402.64

Finding the Fourth Proportional to 379,475.12, 523,686.50 and 207,402.64

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Solution

The fourth proportional to 379,475.12, 523,686.50 and 207,402.64 is: 286,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,475.12 : 523,686.50 = 207,402.64 : x
  2. Step 2: Convert to fraction form
    379,475.12/523,686.50 = 207,402.64/x
  3. Step 3: Cross multiply
    379,475.12x = 523,686.50 × 207,402.64
  4. Step 4: Simplify right side
    379,475.12x = 108,613,962,632.36
  5. Step 5: Solve for x
    x = 108,613,962,632.36/379,475.12
  6. Step 6: Final answer
    x = 286,221.56

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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.