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Finding the Fourth Proportional to 288,114.60, 432,171.90 and 155,254.35

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Solution

The fourth proportional to 288,114.60, 432,171.90 and 155,254.35 is: 232,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,114.60 : 432,171.90 = 155,254.35 : x
  2. Step 2: Convert to fraction form
    288,114.60/432,171.90 = 155,254.35/x
  3. Step 3: Cross multiply
    288,114.60x = 432,171.90 × 155,254.35
  4. Step 4: Simplify right side
    288,114.60x = 67,096,567,422.77
  5. Step 5: Solve for x
    x = 67,096,567,422.77/288,114.60
  6. Step 6: Final answer
    x = 232,881.53

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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.