Home / 421,928.91-582,267.36-230,938.20

Finding the Fourth Proportional to 421,928.91, 582,267.36 and 230,938.20

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Solution

The fourth proportional to 421,928.91, 582,267.36 and 230,938.20 is: 318,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,928.91 : 582,267.36 = 230,938.20 : x
  2. Step 2: Convert to fraction form
    421,928.91/582,267.36 = 230,938.20/x
  3. Step 3: Cross multiply
    421,928.91x = 582,267.36 × 230,938.20
  4. Step 4: Simplify right side
    421,928.91x = 134,467,776,037.15
  5. Step 5: Solve for x
    x = 134,467,776,037.15/421,928.91
  6. Step 6: Final answer
    x = 318,697.71

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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.