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Finding the Fourth Proportional to 224,845.21, 310,304.08 and 128,053.16

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Solution

The fourth proportional to 224,845.21, 310,304.08 and 128,053.16 is: 176,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,845.21 : 310,304.08 = 128,053.16 : x
  2. Step 2: Convert to fraction form
    224,845.21/310,304.08 = 128,053.16/x
  3. Step 3: Cross multiply
    224,845.21x = 310,304.08 × 128,053.16
  4. Step 4: Simplify right side
    224,845.21x = 39,735,418,004.89
  5. Step 5: Solve for x
    x = 39,735,418,004.89/224,845.21
  6. Step 6: Final answer
    x = 176,723.44

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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.