Home / 208,312.12-287,471.46-112,818.52

Finding the Fourth Proportional to 208,312.12, 287,471.46 and 112,818.52

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Solution

The fourth proportional to 208,312.12, 287,471.46 and 112,818.52 is: 155,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,312.12 : 287,471.46 = 112,818.52 : x
  2. Step 2: Convert to fraction form
    208,312.12/287,471.46 = 112,818.52/x
  3. Step 3: Cross multiply
    208,312.12x = 287,471.46 × 112,818.52
  4. Step 4: Simplify right side
    208,312.12x = 32,432,104,659.44
  5. Step 5: Solve for x
    x = 32,432,104,659.44/208,312.12
  6. Step 6: Final answer
    x = 155,689.96

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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.