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Finding the Fourth Proportional to 380,881.32, 571,326.84 and 170,475.72

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Solution

The fourth proportional to 380,881.32, 571,326.84 and 170,475.72 is: 255,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,881.32 : 571,326.84 = 170,475.72 : x
  2. Step 2: Convert to fraction form
    380,881.32/571,326.84 = 170,475.72/x
  3. Step 3: Cross multiply
    380,881.32x = 571,326.84 × 170,475.72
  4. Step 4: Simplify right side
    380,881.32x = 97,397,354,404.32
  5. Step 5: Solve for x
    x = 97,397,354,404.32/380,881.32
  6. Step 6: Final answer
    x = 255,715.76

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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.