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Finding the Fourth Proportional to 344,060.20, 516,090.30 and 91,340.20

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Solution

The fourth proportional to 344,060.20, 516,090.30 and 91,340.20 is: 137,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,060.20 : 516,090.30 = 91,340.20 : x
  2. Step 2: Convert to fraction form
    344,060.20/516,090.30 = 91,340.20/x
  3. Step 3: Cross multiply
    344,060.20x = 516,090.30 × 91,340.20
  4. Step 4: Simplify right side
    344,060.20x = 47,139,791,220.06
  5. Step 5: Solve for x
    x = 47,139,791,220.06/344,060.20
  6. Step 6: Final answer
    x = 137,010.30

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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.