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Finding the Fourth Proportional to 249,999.72, 375,052.89 and 143,432.64

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Solution

The fourth proportional to 249,999.72, 375,052.89 and 143,432.64 is: 215,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,999.72 : 375,052.89 = 143,432.64 : x
  2. Step 2: Convert to fraction form
    249,999.72/375,052.89 = 143,432.64/x
  3. Step 3: Cross multiply
    249,999.72x = 375,052.89 × 143,432.64
  4. Step 4: Simplify right side
    249,999.72x = 53,794,826,152.33
  5. Step 5: Solve for x
    x = 53,794,826,152.33/249,999.72
  6. Step 6: Final answer
    x = 215,179.55

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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.