Home / 279,890.54-386,248.97-152,566.13

Finding the Fourth Proportional to 279,890.54, 386,248.97 and 152,566.13

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Solution

The fourth proportional to 279,890.54, 386,248.97 and 152,566.13 is: 210,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,890.54 : 386,248.97 = 152,566.13 : x
  2. Step 2: Convert to fraction form
    279,890.54/386,248.97 = 152,566.13/x
  3. Step 3: Cross multiply
    279,890.54x = 386,248.97 × 152,566.13
  4. Step 4: Simplify right side
    279,890.54x = 58,928,511,916.42
  5. Step 5: Solve for x
    x = 58,928,511,916.42/279,890.54
  6. Step 6: Final answer
    x = 210,541.28

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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.