Home / 421,696.05-581,947.11-230,712.63

Finding the Fourth Proportional to 421,696.05, 581,947.11 and 230,712.63

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Solution

The fourth proportional to 421,696.05, 581,947.11 and 230,712.63 is: 318,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,696.05 : 581,947.11 = 230,712.63 : x
  2. Step 2: Convert to fraction form
    421,696.05/581,947.11 = 230,712.63/x
  3. Step 3: Cross multiply
    421,696.05x = 581,947.11 × 230,712.63
  4. Step 4: Simplify right side
    421,696.05x = 134,262,548,269.00
  5. Step 5: Solve for x
    x = 134,262,548,269.00/421,696.05
  6. Step 6: Final answer
    x = 318,387.02

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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.