Home / 361,816.13-542,341.17-121,701.45

Finding the Fourth Proportional to 361,816.13, 542,341.17 and 121,701.45

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Solution

The fourth proportional to 361,816.13, 542,341.17 and 121,701.45 is: 182,423.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,816.13 : 542,341.17 = 121,701.45 : x
  2. Step 2: Convert to fraction form
    361,816.13/542,341.17 = 121,701.45/x
  3. Step 3: Cross multiply
    361,816.13x = 542,341.17 × 121,701.45
  4. Step 4: Simplify right side
    361,816.13x = 66,003,708,817.48
  5. Step 5: Solve for x
    x = 66,003,708,817.48/361,816.13
  6. Step 6: Final answer
    x = 182,423.34

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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.