Home / 421,317.06-581,426.55-230,348.22

Finding the Fourth Proportional to 421,317.06, 581,426.55 and 230,348.22

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Solution

The fourth proportional to 421,317.06, 581,426.55 and 230,348.22 is: 317,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,317.06 : 581,426.55 = 230,348.22 : x
  2. Step 2: Convert to fraction form
    421,317.06/581,426.55 = 230,348.22/x
  3. Step 3: Cross multiply
    421,317.06x = 581,426.55 × 230,348.22
  4. Step 4: Simplify right side
    421,317.06x = 133,930,570,853.24
  5. Step 5: Solve for x
    x = 133,930,570,853.24/421,317.06
  6. Step 6: Final answer
    x = 317,885.47

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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.