Home / 291,535.09-402,180.96-170,602.21

Finding the Fourth Proportional to 291,535.09, 402,180.96 and 170,602.21

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Solution

The fourth proportional to 291,535.09, 402,180.96 and 170,602.21 is: 235,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,535.09 : 402,180.96 = 170,602.21 : x
  2. Step 2: Convert to fraction form
    291,535.09/402,180.96 = 170,602.21/x
  3. Step 3: Cross multiply
    291,535.09x = 402,180.96 × 170,602.21
  4. Step 4: Simplify right side
    291,535.09x = 68,612,960,595.92
  5. Step 5: Solve for x
    x = 68,612,960,595.92/291,535.09
  6. Step 6: Final answer
    x = 235,350.61

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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.