Home / 208,219.91-287,344.13-112,726.98

Finding the Fourth Proportional to 208,219.91, 287,344.13 and 112,726.98

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Solution

The fourth proportional to 208,219.91, 287,344.13 and 112,726.98 is: 155,563.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,219.91 : 287,344.13 = 112,726.98 : x
  2. Step 2: Convert to fraction form
    208,219.91/287,344.13 = 112,726.98/x
  3. Step 3: Cross multiply
    208,219.91x = 287,344.13 × 112,726.98
  4. Step 4: Simplify right side
    208,219.91x = 32,391,435,431.99
  5. Step 5: Solve for x
    x = 32,391,435,431.99/208,219.91
  6. Step 6: Final answer
    x = 155,563.59

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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.