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Finding the Fourth Proportional to 343,773.18, 515,716.61 and 144,108.45

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Solution

The fourth proportional to 343,773.18, 515,716.61 and 144,108.45 is: 216,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,773.18 : 515,716.61 = 144,108.45 : x
  2. Step 2: Convert to fraction form
    343,773.18/515,716.61 = 144,108.45/x
  3. Step 3: Cross multiply
    343,773.18x = 515,716.61 × 144,108.45
  4. Step 4: Simplify right side
    343,773.18x = 74,319,120,585.81
  5. Step 5: Solve for x
    x = 74,319,120,585.81/343,773.18
  6. Step 6: Final answer
    x = 216,186.50

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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.