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Finding the Fourth Proportional to 328,910.80, 493,220.40 and 151,326.40

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Solution

The fourth proportional to 328,910.80, 493,220.40 and 151,326.40 is: 226,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,910.80 : 493,220.40 = 151,326.40 : x
  2. Step 2: Convert to fraction form
    328,910.80/493,220.40 = 151,326.40/x
  3. Step 3: Cross multiply
    328,910.80x = 493,220.40 × 151,326.40
  4. Step 4: Simplify right side
    328,910.80x = 74,637,267,538.56
  5. Step 5: Solve for x
    x = 74,637,267,538.56/328,910.80
  6. Step 6: Final answer
    x = 226,922.52

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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.