Home / 280,135.17-386,589.33-152,813.43

Finding the Fourth Proportional to 280,135.17, 386,589.33 and 152,813.43

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Solution

The fourth proportional to 280,135.17, 386,589.33 and 152,813.43 is: 210,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,135.17 : 386,589.33 = 152,813.43 : x
  2. Step 2: Convert to fraction form
    280,135.17/386,589.33 = 152,813.43/x
  3. Step 3: Cross multiply
    280,135.17x = 386,589.33 × 152,813.43
  4. Step 4: Simplify right side
    280,135.17x = 59,076,041,518.70
  5. Step 5: Solve for x
    x = 59,076,041,518.70/280,135.17
  6. Step 6: Final answer
    x = 210,884.06

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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.