Home / 318,113.46-438,954.03-197,210.61

Finding the Fourth Proportional to 318,113.46, 438,954.03 and 197,210.61

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Solution

The fourth proportional to 318,113.46, 438,954.03 and 197,210.61 is: 272,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,113.46 : 438,954.03 = 197,210.61 : x
  2. Step 2: Convert to fraction form
    318,113.46/438,954.03 = 197,210.61/x
  3. Step 3: Cross multiply
    318,113.46x = 438,954.03 × 197,210.61
  4. Step 4: Simplify right side
    318,113.46x = 86,566,392,018.26
  5. Step 5: Solve for x
    x = 86,566,392,018.26/318,113.46
  6. Step 6: Final answer
    x = 272,124.27

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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.