Home / 421,964.76-582,326.18-230,978.31

Finding the Fourth Proportional to 421,964.76, 582,326.18 and 230,978.31

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Solution

The fourth proportional to 421,964.76, 582,326.18 and 230,978.31 is: 318,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,964.76 : 582,326.18 = 230,978.31 : x
  2. Step 2: Convert to fraction form
    421,964.76/582,326.18 = 230,978.31/x
  3. Step 3: Cross multiply
    421,964.76x = 582,326.18 × 230,978.31
  4. Step 4: Simplify right side
    421,964.76x = 134,504,716,925.16
  5. Step 5: Solve for x
    x = 134,504,716,925.16/421,964.76
  6. Step 6: Final answer
    x = 318,758.18

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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.