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Finding the Fourth Proportional to 276,363.40, 414,545.10 and 210,008.20

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Solution

The fourth proportional to 276,363.40, 414,545.10 and 210,008.20 is: 315,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,363.40 : 414,545.10 = 210,008.20 : x
  2. Step 2: Convert to fraction form
    276,363.40/414,545.10 = 210,008.20/x
  3. Step 3: Cross multiply
    276,363.40x = 414,545.10 × 210,008.20
  4. Step 4: Simplify right side
    276,363.40x = 87,057,870,269.82
  5. Step 5: Solve for x
    x = 87,057,870,269.82/276,363.40
  6. Step 6: Final answer
    x = 315,012.30

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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.