Home / 208,280.28-287,211.79-178,165.29

Finding the Fourth Proportional to 208,280.28, 287,211.79 and 178,165.29

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Solution

The fourth proportional to 208,280.28, 287,211.79 and 178,165.29 is: 245,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,280.28 : 287,211.79 = 178,165.29 : x
  2. Step 2: Convert to fraction form
    208,280.28/287,211.79 = 178,165.29/x
  3. Step 3: Cross multiply
    208,280.28x = 287,211.79 × 178,165.29
  4. Step 4: Simplify right side
    208,280.28x = 51,171,173,156.52
  5. Step 5: Solve for x
    x = 51,171,173,156.52/208,280.28
  6. Step 6: Final answer
    x = 245,684.19

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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.