Home / 345,831.66-518,792.88-135,442.26

Finding the Fourth Proportional to 345,831.66, 518,792.88 and 135,442.26

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Solution

The fourth proportional to 345,831.66, 518,792.88 and 135,442.26 is: 203,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,831.66 : 518,792.88 = 135,442.26 : x
  2. Step 2: Convert to fraction form
    345,831.66/518,792.88 = 135,442.26/x
  3. Step 3: Cross multiply
    345,831.66x = 518,792.88 × 135,442.26
  4. Step 4: Simplify right side
    345,831.66x = 70,266,480,139.11
  5. Step 5: Solve for x
    x = 70,266,480,139.11/345,831.66
  6. Step 6: Final answer
    x = 203,181.17

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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.