Home / 291,921.03-402,849.86-157,785.03

Finding the Fourth Proportional to 291,921.03, 402,849.86 and 157,785.03

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Solution

The fourth proportional to 291,921.03, 402,849.86 and 157,785.03 is: 217,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,921.03 : 402,849.86 = 157,785.03 : x
  2. Step 2: Convert to fraction form
    291,921.03/402,849.86 = 157,785.03/x
  3. Step 3: Cross multiply
    291,921.03x = 402,849.86 × 157,785.03
  4. Step 4: Simplify right side
    291,921.03x = 63,563,676,456.67
  5. Step 5: Solve for x
    x = 63,563,676,456.67/291,921.03
  6. Step 6: Final answer
    x = 217,742.71

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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.