Home / 208,358.18-287,534.34-112,864.89

Finding the Fourth Proportional to 208,358.18, 287,534.34 and 112,864.89

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Solution

The fourth proportional to 208,358.18, 287,534.34 and 112,864.89 is: 155,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,358.18 : 287,534.34 = 112,864.89 : x
  2. Step 2: Convert to fraction form
    208,358.18/287,534.34 = 112,864.89/x
  3. Step 3: Cross multiply
    208,358.18x = 287,534.34 × 112,864.89
  4. Step 4: Simplify right side
    208,358.18x = 32,452,531,091.00
  5. Step 5: Solve for x
    x = 32,452,531,091.00/208,358.18
  6. Step 6: Final answer
    x = 155,753.58

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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.