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Finding the Fourth Proportional to 287,079.40, 430,619.10 and 182,103.40

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Solution

The fourth proportional to 287,079.40, 430,619.10 and 182,103.40 is: 273,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,079.40 : 430,619.10 = 182,103.40 : x
  2. Step 2: Convert to fraction form
    287,079.40/430,619.10 = 182,103.40/x
  3. Step 3: Cross multiply
    287,079.40x = 430,619.10 × 182,103.40
  4. Step 4: Simplify right side
    287,079.40x = 78,417,202,214.94
  5. Step 5: Solve for x
    x = 78,417,202,214.94/287,079.40
  6. Step 6: Final answer
    x = 273,155.10

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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.