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Finding the Fourth Proportional to 219,182.40, 328,082.40 and 212,270.40

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Solution

The fourth proportional to 219,182.40, 328,082.40 and 212,270.40 is: 317,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,182.40 : 328,082.40 = 212,270.40 : x
  2. Step 2: Convert to fraction form
    219,182.40/328,082.40 = 212,270.40/x
  3. Step 3: Cross multiply
    219,182.40x = 328,082.40 × 212,270.40
  4. Step 4: Simplify right side
    219,182.40x = 69,642,182,280.96
  5. Step 5: Solve for x
    x = 69,642,182,280.96/219,182.40
  6. Step 6: Final answer
    x = 317,736.20

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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.