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Finding the Fourth Proportional to 274,502.80, 412,410.30 and 245,634.40

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Solution

The fourth proportional to 274,502.80, 412,410.30 and 245,634.40 is: 369,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,502.80 : 412,410.30 = 245,634.40 : x
  2. Step 2: Convert to fraction form
    274,502.80/412,410.30 = 245,634.40/x
  3. Step 3: Cross multiply
    274,502.80x = 412,410.30 × 245,634.40
  4. Step 4: Simplify right side
    274,502.80x = 101,302,156,594.32
  5. Step 5: Solve for x
    x = 101,302,156,594.32/274,502.80
  6. Step 6: Final answer
    x = 369,038.70

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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.