Home / 287,016.12-430,790.20-144,961.15

Finding the Fourth Proportional to 287,016.12, 430,790.20 and 144,961.15

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Solution

The fourth proportional to 287,016.12, 430,790.20 and 144,961.15 is: 217,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,016.12 : 430,790.20 = 144,961.15 : x
  2. Step 2: Convert to fraction form
    287,016.12/430,790.20 = 144,961.15/x
  3. Step 3: Cross multiply
    287,016.12x = 430,790.20 × 144,961.15
  4. Step 4: Simplify right side
    287,016.12x = 62,447,844,416.19
  5. Step 5: Solve for x
    x = 62,447,844,416.19/287,016.12
  6. Step 6: Final answer
    x = 217,576.09

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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.