Home / 208,205.64-287,321.40-112,710.24

Finding the Fourth Proportional to 208,205.64, 287,321.40 and 112,710.24

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Solution

The fourth proportional to 208,205.64, 287,321.40 and 112,710.24 is: 155,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205.64 : 287,321.40 = 112,710.24 : x
  2. Step 2: Convert to fraction form
    208,205.64/287,321.40 = 112,710.24/x
  3. Step 3: Cross multiply
    208,205.64x = 287,321.40 × 112,710.24
  4. Step 4: Simplify right side
    208,205.64x = 32,384,063,951.14
  5. Step 5: Solve for x
    x = 32,384,063,951.14/208,205.64
  6. Step 6: Final answer
    x = 155,538.84

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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.