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Finding the Fourth Proportional to 224,294.49, 309,574.42 and 128,853.81

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Solution

The fourth proportional to 224,294.49, 309,574.42 and 128,853.81 is: 177,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,294.49 : 309,574.42 = 128,853.81 : x
  2. Step 2: Convert to fraction form
    224,294.49/309,574.42 = 128,853.81/x
  3. Step 3: Cross multiply
    224,294.49x = 309,574.42 × 128,853.81
  4. Step 4: Simplify right side
    224,294.49x = 39,889,843,495.54
  5. Step 5: Solve for x
    x = 39,889,843,495.54/224,294.49
  6. Step 6: Final answer
    x = 177,845.85

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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.