Home / 286,967.12-396,012.76-157,913.46

Finding the Fourth Proportional to 286,967.12, 396,012.76 and 157,913.46

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Solution

The fourth proportional to 286,967.12, 396,012.76 and 157,913.46 is: 217,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,967.12 : 396,012.76 = 157,913.46 : x
  2. Step 2: Convert to fraction form
    286,967.12/396,012.76 = 157,913.46/x
  3. Step 3: Cross multiply
    286,967.12x = 396,012.76 × 157,913.46
  4. Step 4: Simplify right side
    286,967.12x = 62,535,744,740.97
  5. Step 5: Solve for x
    x = 62,535,744,740.97/286,967.12
  6. Step 6: Final answer
    x = 217,919.55

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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.