Home / 280,208.46-386,687.61-152,884.56

Finding the Fourth Proportional to 280,208.46, 386,687.61 and 152,884.56

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Solution

The fourth proportional to 280,208.46, 386,687.61 and 152,884.56 is: 210,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,208.46 : 386,687.61 = 152,884.56 : x
  2. Step 2: Convert to fraction form
    280,208.46/386,687.61 = 152,884.56/x
  3. Step 3: Cross multiply
    280,208.46x = 386,687.61 × 152,884.56
  4. Step 4: Simplify right side
    280,208.46x = 59,118,565,112.30
  5. Step 5: Solve for x
    x = 59,118,565,112.30/280,208.46
  6. Step 6: Final answer
    x = 210,980.66

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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.