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Finding the Fourth Proportional to 328,082.40, 492,123.60 and 194,894.10

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Solution

The fourth proportional to 328,082.40, 492,123.60 and 194,894.10 is: 292,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,082.40 : 492,123.60 = 194,894.10 : x
  2. Step 2: Convert to fraction form
    328,082.40/492,123.60 = 194,894.10/x
  3. Step 3: Cross multiply
    328,082.40x = 492,123.60 × 194,894.10
  4. Step 4: Simplify right side
    328,082.40x = 95,911,986,110.76
  5. Step 5: Solve for x
    x = 95,911,986,110.76/328,082.40
  6. Step 6: Final answer
    x = 292,341.15

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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.