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Finding the Fourth Proportional to 425,562.10, 638,365.02 and 110,021.74

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Solution

The fourth proportional to 425,562.10, 638,365.02 and 110,021.74 is: 165,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,562.10 : 638,365.02 = 110,021.74 : x
  2. Step 2: Convert to fraction form
    425,562.10/638,365.02 = 110,021.74/x
  3. Step 3: Cross multiply
    425,562.10x = 638,365.02 × 110,021.74
  4. Step 4: Simplify right side
    425,562.10x = 70,234,030,255.53
  5. Step 5: Solve for x
    x = 70,234,030,255.53/425,562.10
  6. Step 6: Final answer
    x = 165,038.26

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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.