Home / 282,199.40-389,422.98-154,877.16

Finding the Fourth Proportional to 282,199.40, 389,422.98 and 154,877.16

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Solution

The fourth proportional to 282,199.40, 389,422.98 and 154,877.16 is: 213,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,199.40 : 389,422.98 = 154,877.16 : x
  2. Step 2: Convert to fraction form
    282,199.40/389,422.98 = 154,877.16/x
  3. Step 3: Cross multiply
    282,199.40x = 389,422.98 × 154,877.16
  4. Step 4: Simplify right side
    282,199.40x = 60,312,725,181.14
  5. Step 5: Solve for x
    x = 60,312,725,181.14/282,199.40
  6. Step 6: Final answer
    x = 213,723.79

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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.