Home / 208,310.42-287,468.10-112,817.49

Finding the Fourth Proportional to 208,310.42, 287,468.10 and 112,817.49

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Solution

The fourth proportional to 208,310.42, 287,468.10 and 112,817.49 is: 155,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,310.42 : 287,468.10 = 112,817.49 : x
  2. Step 2: Convert to fraction form
    208,310.42/287,468.10 = 112,817.49/x
  3. Step 3: Cross multiply
    208,310.42x = 287,468.10 × 112,817.49
  4. Step 4: Simplify right side
    208,310.42x = 32,431,429,497.07
  5. Step 5: Solve for x
    x = 32,431,429,497.07/208,310.42
  6. Step 6: Final answer
    x = 155,687.99

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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.