Home / 287,242.20-396,404.99-158,186.32

Finding the Fourth Proportional to 287,242.20, 396,404.99 and 158,186.32

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Solution

The fourth proportional to 287,242.20, 396,404.99 and 158,186.32 is: 218,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,242.20 : 396,404.99 = 158,186.32 : x
  2. Step 2: Convert to fraction form
    287,242.20/396,404.99 = 158,186.32/x
  3. Step 3: Cross multiply
    287,242.20x = 396,404.99 × 158,186.32
  4. Step 4: Simplify right side
    287,242.20x = 62,705,845,408.99
  5. Step 5: Solve for x
    x = 62,705,845,408.99/287,242.20
  6. Step 6: Final answer
    x = 218,303.04

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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.