Home / 291,625.03-402,442.55-157,489.03

Finding the Fourth Proportional to 291,625.03, 402,442.55 and 157,489.03

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Solution

The fourth proportional to 291,625.03, 402,442.55 and 157,489.03 is: 217,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,625.03 : 402,442.55 = 157,489.03 : x
  2. Step 2: Convert to fraction form
    291,625.03/402,442.55 = 157,489.03/x
  3. Step 3: Cross multiply
    291,625.03x = 402,442.55 × 157,489.03
  4. Step 4: Simplify right side
    291,625.03x = 63,380,286,830.23
  5. Step 5: Solve for x
    x = 63,380,286,830.23/291,625.03
  6. Step 6: Final answer
    x = 217,334.87

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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.