Home / 208,204.48-287,320.16-112,708.72

Finding the Fourth Proportional to 208,204.48, 287,320.16 and 112,708.72

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Solution

The fourth proportional to 208,204.48, 287,320.16 and 112,708.72 is: 155,536.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,204.48 : 287,320.16 = 112,708.72 : x
  2. Step 2: Convert to fraction form
    208,204.48/287,320.16 = 112,708.72/x
  3. Step 3: Cross multiply
    208,204.48x = 287,320.16 × 112,708.72
  4. Step 4: Simplify right side
    208,204.48x = 32,383,487,463.80
  5. Step 5: Solve for x
    x = 32,383,487,463.80/208,204.48
  6. Step 6: Final answer
    x = 155,536.94

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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.