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Finding the Fourth Proportional to 425,551.86, 638,349.66 and 110,011.50

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Solution

The fourth proportional to 425,551.86, 638,349.66 and 110,011.50 is: 165,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,551.86 : 638,349.66 = 110,011.50 : x
  2. Step 2: Convert to fraction form
    425,551.86/638,349.66 = 110,011.50/x
  3. Step 3: Cross multiply
    425,551.86x = 638,349.66 × 110,011.50
  4. Step 4: Simplify right side
    425,551.86x = 70,225,803,621.09
  5. Step 5: Solve for x
    x = 70,225,803,621.09/425,551.86
  6. Step 6: Final answer
    x = 165,022.90

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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.