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Finding the Fourth Proportional to 314,765.80, 472,263.90 and 127,796.20

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Solution

The fourth proportional to 314,765.80, 472,263.90 and 127,796.20 is: 191,741.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,765.80 : 472,263.90 = 127,796.20 : x
  2. Step 2: Convert to fraction form
    314,765.80/472,263.90 = 127,796.20/x
  3. Step 3: Cross multiply
    314,765.80x = 472,263.90 × 127,796.20
  4. Step 4: Simplify right side
    314,765.80x = 60,353,531,817.18
  5. Step 5: Solve for x
    x = 60,353,531,817.18/314,765.80
  6. Step 6: Final answer
    x = 191,741.07

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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.