Home / 208,250.15-287,170.40-178,135.16

Finding the Fourth Proportional to 208,250.15, 287,170.40 and 178,135.16

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Solution

The fourth proportional to 208,250.15, 287,170.40 and 178,135.16 is: 245,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,250.15 : 287,170.40 = 178,135.16 : x
  2. Step 2: Convert to fraction form
    208,250.15/287,170.40 = 178,135.16/x
  3. Step 3: Cross multiply
    208,250.15x = 287,170.40 × 178,135.16
  4. Step 4: Simplify right side
    208,250.15x = 51,155,142,824.74
  5. Step 5: Solve for x
    x = 51,155,142,824.74/208,250.15
  6. Step 6: Final answer
    x = 245,642.77

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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.