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Finding the Fourth Proportional to 208,326.64, 287,490.51 and 112,833.73

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Solution

The fourth proportional to 208,326.64, 287,490.51 and 112,833.73 is: 155,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,326.64 : 287,490.51 = 112,833.73 : x
  2. Step 2: Convert to fraction form
    208,326.64/287,490.51 = 112,833.73/x
  3. Step 3: Cross multiply
    208,326.64x = 287,490.51 × 112,833.73
  4. Step 4: Simplify right side
    208,326.64x = 32,438,626,582.90
  5. Step 5: Solve for x
    x = 32,438,626,582.90/208,326.64
  6. Step 6: Final answer
    x = 155,710.41

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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.