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Finding the Fourth Proportional to 425,898.45, 638,864.10 and 110,347.16

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Solution

The fourth proportional to 425,898.45, 638,864.10 and 110,347.16 is: 165,524.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,898.45 : 638,864.10 = 110,347.16 : x
  2. Step 2: Convert to fraction form
    425,898.45/638,864.10 = 110,347.16/x
  3. Step 3: Cross multiply
    425,898.45x = 638,864.10 × 110,347.16
  4. Step 4: Simplify right side
    425,898.45x = 70,496,835,866.64
  5. Step 5: Solve for x
    x = 70,496,835,866.64/425,898.45
  6. Step 6: Final answer
    x = 165,524.99

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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.