Home / 421,381.14-581,506.02-230,394.66

Finding the Fourth Proportional to 421,381.14, 581,506.02 and 230,394.66

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Solution

The fourth proportional to 421,381.14, 581,506.02 and 230,394.66 is: 317,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,381.14 : 581,506.02 = 230,394.66 : x
  2. Step 2: Convert to fraction form
    421,381.14/581,506.02 = 230,394.66/x
  3. Step 3: Cross multiply
    421,381.14x = 581,506.02 × 230,394.66
  4. Step 4: Simplify right side
    421,381.14x = 133,975,881,765.85
  5. Step 5: Solve for x
    x = 133,975,881,765.85/421,381.14
  6. Step 6: Final answer
    x = 317,944.66

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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.