Home / 208,215.25-287,337.09-112,722.73

Finding the Fourth Proportional to 208,215.25, 287,337.09 and 112,722.73

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Solution

The fourth proportional to 208,215.25, 287,337.09 and 112,722.73 is: 155,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215.25 : 287,337.09 = 112,722.73 : x
  2. Step 2: Convert to fraction form
    208,215.25/287,337.09 = 112,722.73/x
  3. Step 3: Cross multiply
    208,215.25x = 287,337.09 × 112,722.73
  4. Step 4: Simplify right side
    208,215.25x = 32,389,421,215.06
  5. Step 5: Solve for x
    x = 32,389,421,215.06/208,215.25
  6. Step 6: Final answer
    x = 155,557.39

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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.