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Finding the Fourth Proportional to 328,909.97, 493,515.61 and 178,925.51

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Solution

The fourth proportional to 328,909.97, 493,515.61 and 178,925.51 is: 268,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,909.97 : 493,515.61 = 178,925.51 : x
  2. Step 2: Convert to fraction form
    328,909.97/493,515.61 = 178,925.51/x
  3. Step 3: Cross multiply
    328,909.97x = 493,515.61 × 178,925.51
  4. Step 4: Simplify right side
    328,909.97x = 88,302,529,744.63
  5. Step 5: Solve for x
    x = 88,302,529,744.63/328,909.97
  6. Step 6: Final answer
    x = 268,470.22

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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.