Home / 352,186.83-528,363.18-280,411.21

Finding the Fourth Proportional to 352,186.83, 528,363.18 and 280,411.21

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Solution

The fourth proportional to 352,186.83, 528,363.18 and 280,411.21 is: 420,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,186.83 : 528,363.18 = 280,411.21 : x
  2. Step 2: Convert to fraction form
    352,186.83/528,363.18 = 280,411.21/x
  3. Step 3: Cross multiply
    352,186.83x = 528,363.18 × 280,411.21
  4. Step 4: Simplify right side
    352,186.83x = 148,158,958,623.25
  5. Step 5: Solve for x
    x = 148,158,958,623.25/352,186.83
  6. Step 6: Final answer
    x = 420,682.85

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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.