Home / 291,228.04-402,018.69-195,790.10

Finding the Fourth Proportional to 291,228.04, 402,018.69 and 195,790.10

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Solution

The fourth proportional to 291,228.04, 402,018.69 and 195,790.10 is: 270,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,228.04 : 402,018.69 = 195,790.10 : x
  2. Step 2: Convert to fraction form
    291,228.04/402,018.69 = 195,790.10/x
  3. Step 3: Cross multiply
    291,228.04x = 402,018.69 × 195,790.10
  4. Step 4: Simplify right side
    291,228.04x = 78,711,278,241.09
  5. Step 5: Solve for x
    x = 78,711,278,241.09/291,228.04
  6. Step 6: Final answer
    x = 270,273.69

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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.