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Finding the Fourth Proportional to 272,054.56, 407,459.52 and 129,999.68

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Solution

The fourth proportional to 272,054.56, 407,459.52 and 129,999.68 is: 194,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,054.56 : 407,459.52 = 129,999.68 : x
  2. Step 2: Convert to fraction form
    272,054.56/407,459.52 = 129,999.68/x
  3. Step 3: Cross multiply
    272,054.56x = 407,459.52 × 129,999.68
  4. Step 4: Simplify right side
    272,054.56x = 52,969,607,212.95
  5. Step 5: Solve for x
    x = 52,969,607,212.95/272,054.56
  6. Step 6: Final answer
    x = 194,702.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.