Home / 495,427.20-743,140.80-121,450.20

Finding the Fourth Proportional to 495,427.20, 743,140.80 and 121,450.20

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Solution

The fourth proportional to 495,427.20, 743,140.80 and 121,450.20 is: 182,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,427.20 : 743,140.80 = 121,450.20 : x
  2. Step 2: Convert to fraction form
    495,427.20/743,140.80 = 121,450.20/x
  3. Step 3: Cross multiply
    495,427.20x = 743,140.80 × 121,450.20
  4. Step 4: Simplify right side
    495,427.20x = 90,254,598,788.16
  5. Step 5: Solve for x
    x = 90,254,598,788.16/495,427.20
  6. Step 6: Final answer
    x = 182,175.30

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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.