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Finding the Fourth Proportional to 208,155.62, 287,261.71 and 127,567.57

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Solution

The fourth proportional to 208,155.62, 287,261.71 and 127,567.57 is: 176,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,155.62 : 287,261.71 = 127,567.57 : x
  2. Step 2: Convert to fraction form
    208,155.62/287,261.71 = 127,567.57/x
  3. Step 3: Cross multiply
    208,155.62x = 287,261.71 × 127,567.57
  4. Step 4: Simplify right side
    208,155.62x = 36,645,277,660.91
  5. Step 5: Solve for x
    x = 36,645,277,660.91/208,155.62
  6. Step 6: Final answer
    x = 176,047.51

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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.