Home / 287,972.26-432,025.71-98,434.09

Finding the Fourth Proportional to 287,972.26, 432,025.71 and 98,434.09

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Solution

The fourth proportional to 287,972.26, 432,025.71 and 98,434.09 is: 147,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,972.26 : 432,025.71 = 98,434.09 : x
  2. Step 2: Convert to fraction form
    287,972.26/432,025.71 = 98,434.09/x
  3. Step 3: Cross multiply
    287,972.26x = 432,025.71 × 98,434.09
  4. Step 4: Simplify right side
    287,972.26x = 42,526,057,620.45
  5. Step 5: Solve for x
    x = 42,526,057,620.45/287,972.26
  6. Step 6: Final answer
    x = 147,674.15

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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.