Home / 287,944.34-431,580.24-216,637.92

Finding the Fourth Proportional to 287,944.34, 431,580.24 and 216,637.92

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Solution

The fourth proportional to 287,944.34, 431,580.24 and 216,637.92 is: 324,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,944.34 : 431,580.24 = 216,637.92 : x
  2. Step 2: Convert to fraction form
    287,944.34/431,580.24 = 216,637.92/x
  3. Step 3: Cross multiply
    287,944.34x = 431,580.24 × 216,637.92
  4. Step 4: Simplify right side
    287,944.34x = 93,496,645,506.70
  5. Step 5: Solve for x
    x = 93,496,645,506.70/287,944.34
  6. Step 6: Final answer
    x = 324,703.88

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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.