Home / 345,497.20-518,396.28-121,018.96

Finding the Fourth Proportional to 345,497.20, 518,396.28 and 121,018.96

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Solution

The fourth proportional to 345,497.20, 518,396.28 and 121,018.96 is: 181,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,497.20 : 518,396.28 = 121,018.96 : x
  2. Step 2: Convert to fraction form
    345,497.20/518,396.28 = 121,018.96/x
  3. Step 3: Cross multiply
    345,497.20x = 518,396.28 × 121,018.96
  4. Step 4: Simplify right side
    345,497.20x = 62,735,778,673.47
  5. Step 5: Solve for x
    x = 62,735,778,673.47/345,497.20
  6. Step 6: Final answer
    x = 181,581.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.