Home / 279,801.28-386,130.24-152,476.96

Finding the Fourth Proportional to 279,801.28, 386,130.24 and 152,476.96

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Solution

The fourth proportional to 279,801.28, 386,130.24 and 152,476.96 is: 210,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,801.28 : 386,130.24 = 152,476.96 : x
  2. Step 2: Convert to fraction form
    279,801.28/386,130.24 = 152,476.96/x
  3. Step 3: Cross multiply
    279,801.28x = 386,130.24 × 152,476.96
  4. Step 4: Simplify right side
    279,801.28x = 58,875,965,159.27
  5. Step 5: Solve for x
    x = 58,875,965,159.27/279,801.28
  6. Step 6: Final answer
    x = 210,420.64

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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.