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Finding the Fourth Proportional to 471,277.28, 707,047.68 and 155,956.16

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Solution

The fourth proportional to 471,277.28, 707,047.68 and 155,956.16 is: 233,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,277.28 : 707,047.68 = 155,956.16 : x
  2. Step 2: Convert to fraction form
    471,277.28/707,047.68 = 155,956.16/x
  3. Step 3: Cross multiply
    471,277.28x = 707,047.68 × 155,956.16
  4. Step 4: Simplify right side
    471,277.28x = 110,268,441,109.71
  5. Step 5: Solve for x
    x = 110,268,441,109.71/471,277.28
  6. Step 6: Final answer
    x = 233,977.84

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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.