Home / 279,799.90-386,123.24-152,475.18

Finding the Fourth Proportional to 279,799.90, 386,123.24 and 152,475.18

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Solution

The fourth proportional to 279,799.90, 386,123.24 and 152,475.18 is: 210,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,799.90 : 386,123.24 = 152,475.18 : x
  2. Step 2: Convert to fraction form
    279,799.90/386,123.24 = 152,475.18/x
  3. Step 3: Cross multiply
    279,799.90x = 386,123.24 × 152,475.18
  4. Step 4: Simplify right side
    279,799.90x = 58,874,210,521.18
  5. Step 5: Solve for x
    x = 58,874,210,521.18/279,799.90
  6. Step 6: Final answer
    x = 210,415.41

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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.