Home / 279,669.60-385,920.52-157,152.65

Finding the Fourth Proportional to 279,669.60, 385,920.52 and 157,152.65

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Solution

The fourth proportional to 279,669.60, 385,920.52 and 157,152.65 is: 216,857.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,669.60 : 385,920.52 = 157,152.65 : x
  2. Step 2: Convert to fraction form
    279,669.60/385,920.52 = 157,152.65/x
  3. Step 3: Cross multiply
    279,669.60x = 385,920.52 × 157,152.65
  4. Step 4: Simplify right side
    279,669.60x = 60,648,430,084.89
  5. Step 5: Solve for x
    x = 60,648,430,084.89/279,669.60
  6. Step 6: Final answer
    x = 216,857.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.