Home / 287,021.76-430,567.20-94,902.72

Finding the Fourth Proportional to 287,021.76, 430,567.20 and 94,902.72

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Solution

The fourth proportional to 287,021.76, 430,567.20 and 94,902.72 is: 142,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,021.76 : 430,567.20 = 94,902.72 : x
  2. Step 2: Convert to fraction form
    287,021.76/430,567.20 = 94,902.72/x
  3. Step 3: Cross multiply
    287,021.76x = 430,567.20 × 94,902.72
  4. Step 4: Simplify right side
    287,021.76x = 40,861,998,422.78
  5. Step 5: Solve for x
    x = 40,861,998,422.78/287,021.76
  6. Step 6: Final answer
    x = 142,365.51

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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.