Home / 421,280.69-581,367.51-230,294.03

Finding the Fourth Proportional to 421,280.69, 581,367.51 and 230,294.03

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Solution

The fourth proportional to 421,280.69, 581,367.51 and 230,294.03 is: 317,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,280.69 : 581,367.51 = 230,294.03 : x
  2. Step 2: Convert to fraction form
    421,280.69/581,367.51 = 230,294.03/x
  3. Step 3: Cross multiply
    421,280.69x = 581,367.51 × 230,294.03
  4. Step 4: Simplify right side
    421,280.69x = 133,885,463,882.13
  5. Step 5: Solve for x
    x = 133,885,463,882.13/421,280.69
  6. Step 6: Final answer
    x = 317,805.84

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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.