Home / 497,176.80-745,765.20-142,202.40

Finding the Fourth Proportional to 497,176.80, 745,765.20 and 142,202.40

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Solution

The fourth proportional to 497,176.80, 745,765.20 and 142,202.40 is: 213,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,176.80 : 745,765.20 = 142,202.40 : x
  2. Step 2: Convert to fraction form
    497,176.80/745,765.20 = 142,202.40/x
  3. Step 3: Cross multiply
    497,176.80x = 745,765.20 × 142,202.40
  4. Step 4: Simplify right side
    497,176.80x = 106,049,601,276.48
  5. Step 5: Solve for x
    x = 106,049,601,276.48/497,176.80
  6. Step 6: Final answer
    x = 213,303.60

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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.