Home / 287,230.60-430,849.02-100,242.76

Finding the Fourth Proportional to 287,230.60, 430,849.02 and 100,242.76

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Solution

The fourth proportional to 287,230.60, 430,849.02 and 100,242.76 is: 150,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,230.60 : 430,849.02 = 100,242.76 : x
  2. Step 2: Convert to fraction form
    287,230.60/430,849.02 = 100,242.76/x
  3. Step 3: Cross multiply
    287,230.60x = 430,849.02 × 100,242.76
  4. Step 4: Simplify right side
    287,230.60x = 43,189,494,908.10
  5. Step 5: Solve for x
    x = 43,189,494,908.10/287,230.60
  6. Step 6: Final answer
    x = 150,365.23

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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.