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Finding the Fourth Proportional to 421,589.40, 581,797.92 and 230,598.60

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Solution

The fourth proportional to 421,589.40, 581,797.92 and 230,598.60 is: 318,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,589.40 : 581,797.92 = 230,598.60 : x
  2. Step 2: Convert to fraction form
    421,589.40/581,797.92 = 230,598.60/x
  3. Step 3: Cross multiply
    421,589.40x = 581,797.92 × 230,598.60
  4. Step 4: Simplify right side
    421,589.40x = 134,161,785,834.91
  5. Step 5: Solve for x
    x = 134,161,785,834.91/421,589.40
  6. Step 6: Final answer
    x = 318,228.56

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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.