Home / 208,144.40-287,240.11-112,651.07

Finding the Fourth Proportional to 208,144.40, 287,240.11 and 112,651.07

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Solution

The fourth proportional to 208,144.40, 287,240.11 and 112,651.07 is: 155,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,144.40 : 287,240.11 = 112,651.07 : x
  2. Step 2: Convert to fraction form
    208,144.40/287,240.11 = 112,651.07/x
  3. Step 3: Cross multiply
    208,144.40x = 287,240.11 × 112,651.07
  4. Step 4: Simplify right side
    208,144.40x = 32,357,904,020.59
  5. Step 5: Solve for x
    x = 32,357,904,020.59/208,144.40
  6. Step 6: Final answer
    x = 155,458.93

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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.