Home / 421,830.34-582,124.80-230,842.06

Finding the Fourth Proportional to 421,830.34, 582,124.80 and 230,842.06

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Solution

The fourth proportional to 421,830.34, 582,124.80 and 230,842.06 is: 318,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,830.34 : 582,124.80 = 230,842.06 : x
  2. Step 2: Convert to fraction form
    421,830.34/582,124.80 = 230,842.06/x
  3. Step 3: Cross multiply
    421,830.34x = 582,124.80 × 230,842.06
  4. Step 4: Simplify right side
    421,830.34x = 134,378,888,009.09
  5. Step 5: Solve for x
    x = 134,378,888,009.09/421,830.34
  6. Step 6: Final answer
    x = 318,561.46

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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.