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Finding the Fourth Proportional to 279,428.84, 385,596.16 and 152,096.84

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Solution

The fourth proportional to 279,428.84, 385,596.16 and 152,096.84 is: 209,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,428.84 : 385,596.16 = 152,096.84 : x
  2. Step 2: Convert to fraction form
    279,428.84/385,596.16 = 152,096.84/x
  3. Step 3: Cross multiply
    279,428.84x = 385,596.16 × 152,096.84
  4. Step 4: Simplify right side
    279,428.84x = 58,647,957,452.13
  5. Step 5: Solve for x
    x = 58,647,957,452.13/279,428.84
  6. Step 6: Final answer
    x = 209,885.13

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1.5x scale

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.