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Finding the Fourth Proportional to 288,161.10, 432,241.65 and 155,300.85

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Solution

The fourth proportional to 288,161.10, 432,241.65 and 155,300.85 is: 232,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,161.10 : 432,241.65 = 155,300.85 : x
  2. Step 2: Convert to fraction form
    288,161.10/432,241.65 = 155,300.85/x
  3. Step 3: Cross multiply
    288,161.10x = 432,241.65 × 155,300.85
  4. Step 4: Simplify right side
    288,161.10x = 67,127,495,650.40
  5. Step 5: Solve for x
    x = 67,127,495,650.40/288,161.10
  6. Step 6: Final answer
    x = 232,951.28

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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.