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Finding the Fourth Proportional to 421,695.92, 581,882.98 and 251,894

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Solution

The fourth proportional to 421,695.92, 581,882.98 and 251,894 is: 347,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,695.92 : 581,882.98 = 251,894 : x
  2. Step 2: Convert to fraction form
    421,695.92/581,882.98 = 251,894/x
  3. Step 3: Cross multiply
    421,695.92x = 581,882.98 × 251,894
  4. Step 4: Simplify right side
    421,695.92x = 146,572,831,364.12
  5. Step 5: Solve for x
    x = 146,572,831,364.12/421,695.92
  6. Step 6: Final answer
    x = 347,579.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.