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Finding the Fourth Proportional to 312,679.02, 466,730.26 and 268,589.10

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Solution

The fourth proportional to 312,679.02, 466,730.26 and 268,589.10 is: 400,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,679.02 : 466,730.26 = 268,589.10 : x
  2. Step 2: Convert to fraction form
    312,679.02/466,730.26 = 268,589.10/x
  3. Step 3: Cross multiply
    312,679.02x = 466,730.26 × 268,589.10
  4. Step 4: Simplify right side
    312,679.02x = 125,358,660,476.17
  5. Step 5: Solve for x
    x = 125,358,660,476.17/312,679.02
  6. Step 6: Final answer
    x = 400,918.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.