Home / 344,038.20-516,081.66-91,316.64

Finding the Fourth Proportional to 344,038.20, 516,081.66 and 91,316.64

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Solution

The fourth proportional to 344,038.20, 516,081.66 and 91,316.64 is: 136,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,038.20 : 516,081.66 = 91,316.64 : x
  2. Step 2: Convert to fraction form
    344,038.20/516,081.66 = 91,316.64/x
  3. Step 3: Cross multiply
    344,038.20x = 516,081.66 × 91,316.64
  4. Step 4: Simplify right side
    344,038.20x = 47,126,843,156.82
  5. Step 5: Solve for x
    x = 47,126,843,156.82/344,038.20
  6. Step 6: Final answer
    x = 136,981.43

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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.