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Finding the Fourth Proportional to 219,590.31, 329,304.78 and 75,455.25

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Solution

The fourth proportional to 219,590.31, 329,304.78 and 75,455.25 is: 113,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,590.31 : 329,304.78 = 75,455.25 : x
  2. Step 2: Convert to fraction form
    219,590.31/329,304.78 = 75,455.25/x
  3. Step 3: Cross multiply
    219,590.31x = 329,304.78 × 75,455.25
  4. Step 4: Simplify right side
    219,590.31x = 24,847,775,038.96
  5. Step 5: Solve for x
    x = 24,847,775,038.96/219,590.31
  6. Step 6: Final answer
    x = 113,155.15

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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.