Home / 207,275.28-310,878.14-57,530.78

Finding the Fourth Proportional to 207,275.28, 310,878.14 and 57,530.78

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Solution

The fourth proportional to 207,275.28, 310,878.14 and 57,530.78 is: 86,286.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,275.28 : 310,878.14 = 57,530.78 : x
  2. Step 2: Convert to fraction form
    207,275.28/310,878.14 = 57,530.78/x
  3. Step 3: Cross multiply
    207,275.28x = 310,878.14 × 57,530.78
  4. Step 4: Simplify right side
    207,275.28x = 17,885,061,591.50
  5. Step 5: Solve for x
    x = 17,885,061,591.50/207,275.28
  6. Step 6: Final answer
    x = 86,286.52

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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.