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Finding the Fourth Proportional to 328,065.80, 492,098.70 and 268,968.20

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Solution

The fourth proportional to 328,065.80, 492,098.70 and 268,968.20 is: 403,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,065.80 : 492,098.70 = 268,968.20 : x
  2. Step 2: Convert to fraction form
    328,065.80/492,098.70 = 268,968.20/x
  3. Step 3: Cross multiply
    328,065.80x = 492,098.70 × 268,968.20
  4. Step 4: Simplify right side
    328,065.80x = 132,358,901,561.34
  5. Step 5: Solve for x
    x = 132,358,901,561.34/328,065.80
  6. Step 6: Final answer
    x = 403,452.30

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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.