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Finding the Fourth Proportional to 346,082.10, 519,123.15 and 212,529.30

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Solution

The fourth proportional to 346,082.10, 519,123.15 and 212,529.30 is: 318,793.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,082.10 : 519,123.15 = 212,529.30 : x
  2. Step 2: Convert to fraction form
    346,082.10/519,123.15 = 212,529.30/x
  3. Step 3: Cross multiply
    346,082.10x = 519,123.15 × 212,529.30
  4. Step 4: Simplify right side
    346,082.10x = 110,328,879,683.30
  5. Step 5: Solve for x
    x = 110,328,879,683.30/346,082.10
  6. Step 6: Final answer
    x = 318,793.95

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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.