Home / 421,679.48-581,957.73-230,721.57

Finding the Fourth Proportional to 421,679.48, 581,957.73 and 230,721.57

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Solution

The fourth proportional to 421,679.48, 581,957.73 and 230,721.57 is: 318,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,679.48 : 581,957.73 = 230,721.57 : x
  2. Step 2: Convert to fraction form
    421,679.48/581,957.73 = 230,721.57/x
  3. Step 3: Cross multiply
    421,679.48x = 581,957.73 × 230,721.57
  4. Step 4: Simplify right side
    421,679.48x = 134,270,201,139.24
  5. Step 5: Solve for x
    x = 134,270,201,139.24/421,679.48
  6. Step 6: Final answer
    x = 318,417.68

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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.