Home / 314,939.97-472,433.64-90,298.62

Finding the Fourth Proportional to 314,939.97, 472,433.64 and 90,298.62

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Solution

The fourth proportional to 314,939.97, 472,433.64 and 90,298.62 is: 135,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,939.97 : 472,433.64 = 90,298.62 : x
  2. Step 2: Convert to fraction form
    314,939.97/472,433.64 = 90,298.62/x
  3. Step 3: Cross multiply
    314,939.97x = 472,433.64 × 90,298.62
  4. Step 4: Simplify right side
    314,939.97x = 42,660,105,733.58
  5. Step 5: Solve for x
    x = 42,660,105,733.58/314,939.97
  6. Step 6: Final answer
    x = 135,454.72

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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.