Home / 279,724.52-386,017.70-152,399.72

Finding the Fourth Proportional to 279,724.52, 386,017.70 and 152,399.72

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Solution

The fourth proportional to 279,724.52, 386,017.70 and 152,399.72 is: 210,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,724.52 : 386,017.70 = 152,399.72 : x
  2. Step 2: Convert to fraction form
    279,724.52/386,017.70 = 152,399.72/x
  3. Step 3: Cross multiply
    279,724.52x = 386,017.70 × 152,399.72
  4. Step 4: Simplify right side
    279,724.52x = 58,828,989,395.04
  5. Step 5: Solve for x
    x = 58,828,989,395.04/279,724.52
  6. Step 6: Final answer
    x = 210,310.45

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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.