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Finding the Fourth Proportional to 208,342.20, 287,512.25 and 112,848.93

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Solution

The fourth proportional to 208,342.20, 287,512.25 and 112,848.93 is: 155,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,342.20 : 287,512.25 = 112,848.93 : x
  2. Step 2: Convert to fraction form
    208,342.20/287,512.25 = 112,848.93/x
  3. Step 3: Cross multiply
    208,342.20x = 287,512.25 × 112,848.93
  4. Step 4: Simplify right side
    208,342.20x = 32,445,449,210.15
  5. Step 5: Solve for x
    x = 32,445,449,210.15/208,342.20
  6. Step 6: Final answer
    x = 155,731.53

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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.