Home / 421,343.13-581,467.31-240,062.70

Finding the Fourth Proportional to 421,343.13, 581,467.31 and 240,062.70

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Solution

The fourth proportional to 421,343.13, 581,467.31 and 240,062.70 is: 331,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,343.13 : 581,467.31 = 240,062.70 : x
  2. Step 2: Convert to fraction form
    421,343.13/581,467.31 = 240,062.70/x
  3. Step 3: Cross multiply
    421,343.13x = 581,467.31 × 240,062.70
  4. Step 4: Simplify right side
    421,343.13x = 139,588,611,200.02
  5. Step 5: Solve for x
    x = 139,588,611,200.02/421,343.13
  6. Step 6: Final answer
    x = 331,294.38

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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.