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Finding the Fourth Proportional to 316,667.20, 474,338.40 and 148,331.20

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Solution

The fourth proportional to 316,667.20, 474,338.40 and 148,331.20 is: 222,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,667.20 : 474,338.40 = 148,331.20 : x
  2. Step 2: Convert to fraction form
    316,667.20/474,338.40 = 148,331.20/x
  3. Step 3: Cross multiply
    316,667.20x = 474,338.40 × 148,331.20
  4. Step 4: Simplify right side
    316,667.20x = 70,359,184,078.08
  5. Step 5: Solve for x
    x = 70,359,184,078.08/316,667.20
  6. Step 6: Final answer
    x = 222,186.52

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