Home / 208,402.28-287,595.08-112,908.97

Finding the Fourth Proportional to 208,402.28, 287,595.08 and 112,908.97

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Solution

The fourth proportional to 208,402.28, 287,595.08 and 112,908.97 is: 155,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,402.28 : 287,595.08 = 112,908.97 : x
  2. Step 2: Convert to fraction form
    208,402.28/287,595.08 = 112,908.97/x
  3. Step 3: Cross multiply
    208,402.28x = 287,595.08 × 112,908.97
  4. Step 4: Simplify right side
    208,402.28x = 32,472,064,901.63
  5. Step 5: Solve for x
    x = 32,472,064,901.63/208,402.28
  6. Step 6: Final answer
    x = 155,814.35

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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.