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Finding the Fourth Proportional to 328,742, 453,667.20 and 177,842.24

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Solution

The fourth proportional to 328,742, 453,667.20 and 177,842.24 is: 245,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,742 : 453,667.20 = 177,842.24 : x
  2. Step 2: Convert to fraction form
    328,742/453,667.20 = 177,842.24/x
  3. Step 3: Cross multiply
    328,742x = 453,667.20 × 177,842.24
  4. Step 4: Simplify right side
    328,742x = 80,681,191,062.53
  5. Step 5: Solve for x
    x = 80,681,191,062.53/328,742
  6. Step 6: Final answer
    x = 245,424.04

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1.5x scale

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.