Home / 208,016.87-287,064.69-127,444.55

Finding the Fourth Proportional to 208,016.87, 287,064.69 and 127,444.55

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Solution

The fourth proportional to 208,016.87, 287,064.69 and 127,444.55 is: 175,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,016.87 : 287,064.69 = 127,444.55 : x
  2. Step 2: Convert to fraction form
    208,016.87/287,064.69 = 127,444.55/x
  3. Step 3: Cross multiply
    208,016.87x = 287,064.69 × 127,444.55
  4. Step 4: Simplify right side
    208,016.87x = 36,584,830,237.94
  5. Step 5: Solve for x
    x = 36,584,830,237.94/208,016.87
  6. Step 6: Final answer
    x = 175,874.34

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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.