Home / 421,564.43-581,772.77-230,577.81

Finding the Fourth Proportional to 421,564.43, 581,772.77 and 230,577.81

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Solution

The fourth proportional to 421,564.43, 581,772.77 and 230,577.81 is: 318,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,564.43 : 581,772.77 = 230,577.81 : x
  2. Step 2: Convert to fraction form
    421,564.43/581,772.77 = 230,577.81/x
  3. Step 3: Cross multiply
    421,564.43x = 581,772.77 × 230,577.81
  4. Step 4: Simplify right side
    421,564.43x = 134,143,890,071.35
  5. Step 5: Solve for x
    x = 134,143,890,071.35/421,564.43
  6. Step 6: Final answer
    x = 318,204.96

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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.