Home / 224,416.78-309,807.39-139,561.18

Finding the Fourth Proportional to 224,416.78, 309,807.39 and 139,561.18

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Solution

The fourth proportional to 224,416.78, 309,807.39 and 139,561.18 is: 192,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,416.78 : 309,807.39 = 139,561.18 : x
  2. Step 2: Convert to fraction form
    224,416.78/309,807.39 = 139,561.18/x
  3. Step 3: Cross multiply
    224,416.78x = 309,807.39 × 139,561.18
  4. Step 4: Simplify right side
    224,416.78x = 43,237,084,921.12
  5. Step 5: Solve for x
    x = 43,237,084,921.12/224,416.78
  6. Step 6: Final answer
    x = 192,664.22

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1.5x scale

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.