Home / 287,381.79-396,586.85-160,057.35

Finding the Fourth Proportional to 287,381.79, 396,586.85 and 160,057.35

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Solution

The fourth proportional to 287,381.79, 396,586.85 and 160,057.35 is: 220,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,381.79 : 396,586.85 = 160,057.35 : x
  2. Step 2: Convert to fraction form
    287,381.79/396,586.85 = 160,057.35/x
  3. Step 3: Cross multiply
    287,381.79x = 396,586.85 × 160,057.35
  4. Step 4: Simplify right side
    287,381.79x = 63,476,639,455.56
  5. Step 5: Solve for x
    x = 63,476,639,455.56/287,381.79
  6. Step 6: Final answer
    x = 220,879.13

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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.