Home / 282,577.50-389,783.88-167,778.18

Finding the Fourth Proportional to 282,577.50, 389,783.88 and 167,778.18

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Solution

The fourth proportional to 282,577.50, 389,783.88 and 167,778.18 is: 231,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,577.50 : 389,783.88 = 167,778.18 : x
  2. Step 2: Convert to fraction form
    282,577.50/389,783.88 = 167,778.18/x
  3. Step 3: Cross multiply
    282,577.50x = 389,783.88 × 167,778.18
  4. Step 4: Simplify right side
    282,577.50x = 65,397,229,979.74
  5. Step 5: Solve for x
    x = 65,397,229,979.74/282,577.50
  6. Step 6: Final answer
    x = 231,431.13

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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.