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Finding the Fourth Proportional to 374,582.76, 516,957.98 and 213,489.72

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Solution

The fourth proportional to 374,582.76, 516,957.98 and 213,489.72 is: 294,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,582.76 : 516,957.98 = 213,489.72 : x
  2. Step 2: Convert to fraction form
    374,582.76/516,957.98 = 213,489.72/x
  3. Step 3: Cross multiply
    374,582.76x = 516,957.98 × 213,489.72
  4. Step 4: Simplify right side
    374,582.76x = 110,365,214,401.97
  5. Step 5: Solve for x
    x = 110,365,214,401.97/374,582.76
  6. Step 6: Final answer
    x = 294,635.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.