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Finding the Fourth Proportional to 229,459.56, 316,655.46 and 127,485.16

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Solution

The fourth proportional to 229,459.56, 316,655.46 and 127,485.16 is: 175,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,459.56 : 316,655.46 = 127,485.16 : x
  2. Step 2: Convert to fraction form
    229,459.56/316,655.46 = 127,485.16/x
  3. Step 3: Cross multiply
    229,459.56x = 316,655.46 × 127,485.16
  4. Step 4: Simplify right side
    229,459.56x = 40,368,871,982.97
  5. Step 5: Solve for x
    x = 40,368,871,982.97/229,459.56
  6. Step 6: Final answer
    x = 175,930.22

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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.