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Finding the Fourth Proportional to 421,925.40, 582,256.08 and 230,937.12

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Solution

The fourth proportional to 421,925.40, 582,256.08 and 230,937.12 is: 318,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,925.40 : 582,256.08 = 230,937.12 : x
  2. Step 2: Convert to fraction form
    421,925.40/582,256.08 = 230,937.12/x
  3. Step 3: Cross multiply
    421,925.40x = 582,256.08 × 230,937.12
  4. Step 4: Simplify right side
    421,925.40x = 134,464,542,217.69
  5. Step 5: Solve for x
    x = 134,464,542,217.69/421,925.40
  6. Step 6: Final answer
    x = 318,692.69

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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.