Home / 287,630.21-431,458.28-110,091.17

Finding the Fourth Proportional to 287,630.21, 431,458.28 and 110,091.17

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Solution

The fourth proportional to 287,630.21, 431,458.28 and 110,091.17 is: 165,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,630.21 : 431,458.28 = 110,091.17 : x
  2. Step 2: Convert to fraction form
    287,630.21/431,458.28 = 110,091.17/x
  3. Step 3: Cross multiply
    287,630.21x = 431,458.28 × 110,091.17
  4. Step 4: Simplify right side
    287,630.21x = 47,499,746,300.93
  5. Step 5: Solve for x
    x = 47,499,746,300.93/287,630.21
  6. Step 6: Final answer
    x = 165,141.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.