Home / 399,214.80-598,302.20-162,280.72

Finding the Fourth Proportional to 399,214.80, 598,302.20 and 162,280.72

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Solution

The fourth proportional to 399,214.80, 598,302.20 and 162,280.72 is: 243,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,214.80 : 598,302.20 = 162,280.72 : x
  2. Step 2: Convert to fraction form
    399,214.80/598,302.20 = 162,280.72/x
  3. Step 3: Cross multiply
    399,214.80x = 598,302.20 × 162,280.72
  4. Step 4: Simplify right side
    399,214.80x = 97,092,911,793.58
  5. Step 5: Solve for x
    x = 97,092,911,793.58/399,214.80
  6. Step 6: Final answer
    x = 243,209.70

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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.