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Finding the Fourth Proportional to 577,363.13, 866,093.15 and 212,724

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Solution

The fourth proportional to 577,363.13, 866,093.15 and 212,724 is: 319,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,363.13 : 866,093.15 = 212,724 : x
  2. Step 2: Convert to fraction form
    577,363.13/866,093.15 = 212,724/x
  3. Step 3: Cross multiply
    577,363.13x = 866,093.15 × 212,724
  4. Step 4: Simplify right side
    577,363.13x = 184,238,798,176.98
  5. Step 5: Solve for x
    x = 184,238,798,176.98/577,363.13
  6. Step 6: Final answer
    x = 319,103.85

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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.