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Finding the Fourth Proportional to 360,922.80, 498,126.86 and 207,931.89

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Solution

The fourth proportional to 360,922.80, 498,126.86 and 207,931.89 is: 286,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,922.80 : 498,126.86 = 207,931.89 : x
  2. Step 2: Convert to fraction form
    360,922.80/498,126.86 = 207,931.89/x
  3. Step 3: Cross multiply
    360,922.80x = 498,126.86 × 207,931.89
  4. Step 4: Simplify right side
    360,922.80x = 103,576,458,419.91
  5. Step 5: Solve for x
    x = 103,576,458,419.91/360,922.80
  6. Step 6: Final answer
    x = 286,976.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.