Home / 279,381.54-385,554.70-152,065.38

Finding the Fourth Proportional to 279,381.54, 385,554.70 and 152,065.38

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Solution

The fourth proportional to 279,381.54, 385,554.70 and 152,065.38 is: 209,854.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,381.54 : 385,554.70 = 152,065.38 : x
  2. Step 2: Convert to fraction form
    279,381.54/385,554.70 = 152,065.38/x
  3. Step 3: Cross multiply
    279,381.54x = 385,554.70 × 152,065.38
  4. Step 4: Simplify right side
    279,381.54x = 58,629,521,966.29
  5. Step 5: Solve for x
    x = 58,629,521,966.29/279,381.54
  6. Step 6: Final answer
    x = 209,854.67

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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.