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Finding the Fourth Proportional to 328,268.32, 492,402.32 and 78,950.24

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Solution

The fourth proportional to 328,268.32, 492,402.32 and 78,950.24 is: 118,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,268.32 : 492,402.32 = 78,950.24 : x
  2. Step 2: Convert to fraction form
    328,268.32/492,402.32 = 78,950.24/x
  3. Step 3: Cross multiply
    328,268.32x = 492,402.32 × 78,950.24
  4. Step 4: Simplify right side
    328,268.32x = 38,875,281,340.56
  5. Step 5: Solve for x
    x = 38,875,281,340.56/328,268.32
  6. Step 6: Final answer
    x = 118,425.32

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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.