Home / 288,211.80-432,581.38-146,155.12

Finding the Fourth Proportional to 288,211.80, 432,581.38 and 146,155.12

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Solution

The fourth proportional to 288,211.80, 432,581.38 and 146,155.12 is: 219,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,211.80 : 432,581.38 = 146,155.12 : x
  2. Step 2: Convert to fraction form
    288,211.80/432,581.38 = 146,155.12/x
  3. Step 3: Cross multiply
    288,211.80x = 432,581.38 × 146,155.12
  4. Step 4: Simplify right side
    288,211.80x = 63,223,982,056.82
  5. Step 5: Solve for x
    x = 63,223,982,056.82/288,211.80
  6. Step 6: Final answer
    x = 219,366.39

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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.