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Finding the Fourth Proportional to 155,655.90, 233,483.85 and 135,972.90

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Solution

The fourth proportional to 155,655.90, 233,483.85 and 135,972.90 is: 203,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,655.90 : 233,483.85 = 135,972.90 : x
  2. Step 2: Convert to fraction form
    155,655.90/233,483.85 = 135,972.90/x
  3. Step 3: Cross multiply
    155,655.90x = 233,483.85 × 135,972.90
  4. Step 4: Simplify right side
    155,655.90x = 31,747,476,187.67
  5. Step 5: Solve for x
    x = 31,747,476,187.67/155,655.90
  6. Step 6: Final answer
    x = 203,959.35

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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.