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Finding the Fourth Proportional to 367,079.80, 550,455.67 and 142,365.55

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Solution

The fourth proportional to 367,079.80, 550,455.67 and 142,365.55 is: 213,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,079.80 : 550,455.67 = 142,365.55 : x
  2. Step 2: Convert to fraction form
    367,079.80/550,455.67 = 142,365.55/x
  3. Step 3: Cross multiply
    367,079.80x = 550,455.67 × 142,365.55
  4. Step 4: Simplify right side
    367,079.80x = 78,365,924,210.17
  5. Step 5: Solve for x
    x = 78,365,924,210.17/367,079.80
  6. Step 6: Final answer
    x = 213,484.71

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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.