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Finding the Fourth Proportional to 288,612.70, 432,919.05 and 235,468.60

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Solution

The fourth proportional to 288,612.70, 432,919.05 and 235,468.60 is: 353,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,612.70 : 432,919.05 = 235,468.60 : x
  2. Step 2: Convert to fraction form
    288,612.70/432,919.05 = 235,468.60/x
  3. Step 3: Cross multiply
    288,612.70x = 432,919.05 × 235,468.60
  4. Step 4: Simplify right side
    288,612.70x = 101,938,842,616.83
  5. Step 5: Solve for x
    x = 101,938,842,616.83/288,612.70
  6. Step 6: Final answer
    x = 353,202.90

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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.