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Finding the Fourth Proportional to 344,593.78, 516,364.40 and 144,804.95

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Solution

The fourth proportional to 344,593.78, 516,364.40 and 144,804.95 is: 216,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,593.78 : 516,364.40 = 144,804.95 : x
  2. Step 2: Convert to fraction form
    344,593.78/516,364.40 = 144,804.95/x
  3. Step 3: Cross multiply
    344,593.78x = 516,364.40 × 144,804.95
  4. Step 4: Simplify right side
    344,593.78x = 74,772,120,840.34
  5. Step 5: Solve for x
    x = 74,772,120,840.34/344,593.78
  6. Step 6: Final answer
    x = 216,986.28

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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.