Home / 288,948.70-432,839.85-164,143.90

Finding the Fourth Proportional to 288,948.70, 432,839.85 and 164,143.90

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Solution

The fourth proportional to 288,948.70, 432,839.85 and 164,143.90 is: 245,884.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,948.70 : 432,839.85 = 164,143.90 : x
  2. Step 2: Convert to fraction form
    288,948.70/432,839.85 = 164,143.90/x
  3. Step 3: Cross multiply
    288,948.70x = 432,839.85 × 164,143.90
  4. Step 4: Simplify right side
    288,948.70x = 71,048,021,054.42
  5. Step 5: Solve for x
    x = 71,048,021,054.42/288,948.70
  6. Step 6: Final answer
    x = 245,884.55

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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.