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Finding the Fourth Proportional to 224,920.02, 310,389.94 and 129,424.80

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Solution

The fourth proportional to 224,920.02, 310,389.94 and 129,424.80 is: 178,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,920.02 : 310,389.94 = 129,424.80 : x
  2. Step 2: Convert to fraction form
    224,920.02/310,389.94 = 129,424.80/x
  3. Step 3: Cross multiply
    224,920.02x = 310,389.94 × 129,424.80
  4. Step 4: Simplify right side
    224,920.02x = 40,172,155,906.51
  5. Step 5: Solve for x
    x = 40,172,155,906.51/224,920.02
  6. Step 6: Final answer
    x = 178,606.40

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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.