Home / 495,435.47-743,153.20-140,452.56

Finding the Fourth Proportional to 495,435.47, 743,153.20 and 140,452.56

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Solution

The fourth proportional to 495,435.47, 743,153.20 and 140,452.56 is: 210,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,435.47 : 743,153.20 = 140,452.56 : x
  2. Step 2: Convert to fraction form
    495,435.47/743,153.20 = 140,452.56/x
  3. Step 3: Cross multiply
    495,435.47x = 743,153.20 × 140,452.56
  4. Step 4: Simplify right side
    495,435.47x = 104,377,769,061.06
  5. Step 5: Solve for x
    x = 104,377,769,061.06/495,435.47
  6. Step 6: Final answer
    x = 210,678.84

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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.