Home / 407,812.17-611,724.42-141,581.15

Finding the Fourth Proportional to 407,812.17, 611,724.42 and 141,581.15

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Solution

The fourth proportional to 407,812.17, 611,724.42 and 141,581.15 is: 212,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,812.17 : 611,724.42 = 141,581.15 : x
  2. Step 2: Convert to fraction form
    407,812.17/611,724.42 = 141,581.15/x
  3. Step 3: Cross multiply
    407,812.17x = 611,724.42 × 141,581.15
  4. Step 4: Simplify right side
    407,812.17x = 86,608,643,808.06
  5. Step 5: Solve for x
    x = 86,608,643,808.06/407,812.17
  6. Step 6: Final answer
    x = 212,373.86

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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.