Home / 208,218.75-287,343.36-112,725.69

Finding the Fourth Proportional to 208,218.75, 287,343.36 and 112,725.69

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Solution

The fourth proportional to 208,218.75, 287,343.36 and 112,725.69 is: 155,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,218.75 : 287,343.36 = 112,725.69 : x
  2. Step 2: Convert to fraction form
    208,218.75/287,343.36 = 112,725.69/x
  3. Step 3: Cross multiply
    208,218.75x = 287,343.36 × 112,725.69
  4. Step 4: Simplify right side
    208,218.75x = 32,390,978,522.92
  5. Step 5: Solve for x
    x = 32,390,978,522.92/208,218.75
  6. Step 6: Final answer
    x = 155,562.26

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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.