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Finding the Fourth Proportional to 328,775.80, 493,017.90 and 151,337.20

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Solution

The fourth proportional to 328,775.80, 493,017.90 and 151,337.20 is: 226,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,775.80 : 493,017.90 = 151,337.20 : x
  2. Step 2: Convert to fraction form
    328,775.80/493,017.90 = 151,337.20/x
  3. Step 3: Cross multiply
    328,775.80x = 493,017.90 × 151,337.20
  4. Step 4: Simplify right side
    328,775.80x = 74,611,948,535.88
  5. Step 5: Solve for x
    x = 74,611,948,535.88/328,775.80
  6. Step 6: Final answer
    x = 226,938.69

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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.