Home / 208,205.93-287,324.28-112,712.63

Finding the Fourth Proportional to 208,205.93, 287,324.28 and 112,712.63

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Solution

The fourth proportional to 208,205.93, 287,324.28 and 112,712.63 is: 155,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205.93 : 287,324.28 = 112,712.63 : x
  2. Step 2: Convert to fraction form
    208,205.93/287,324.28 = 112,712.63/x
  3. Step 3: Cross multiply
    208,205.93x = 287,324.28 × 112,712.63
  4. Step 4: Simplify right side
    208,205.93x = 32,385,073,825.04
  5. Step 5: Solve for x
    x = 32,385,073,825.04/208,205.93
  6. Step 6: Final answer
    x = 155,543.47

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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.