Home / 421,237.13-581,307.23-230,251.28

Finding the Fourth Proportional to 421,237.13, 581,307.23 and 230,251.28

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Solution

The fourth proportional to 421,237.13, 581,307.23 and 230,251.28 is: 317,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,237.13 : 581,307.23 = 230,251.28 : x
  2. Step 2: Convert to fraction form
    421,237.13/581,307.23 = 230,251.28/x
  3. Step 3: Cross multiply
    421,237.13x = 581,307.23 × 230,251.28
  4. Step 4: Simplify right side
    421,237.13x = 133,846,731,449.85
  5. Step 5: Solve for x
    x = 133,846,731,449.85/421,237.13
  6. Step 6: Final answer
    x = 317,746.76

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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.