Home / 243,646.20-365,456.28-77,421.24

Finding the Fourth Proportional to 243,646.20, 365,456.28 and 77,421.24

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Solution

The fourth proportional to 243,646.20, 365,456.28 and 77,421.24 is: 116,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,646.20 : 365,456.28 = 77,421.24 : x
  2. Step 2: Convert to fraction form
    243,646.20/365,456.28 = 77,421.24/x
  3. Step 3: Cross multiply
    243,646.20x = 365,456.28 × 77,421.24
  4. Step 4: Simplify right side
    243,646.20x = 28,294,078,363.39
  5. Step 5: Solve for x
    x = 28,294,078,363.39/243,646.20
  6. Step 6: Final answer
    x = 116,127.72

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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.