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Finding the Fourth Proportional to 425,627.01, 638,628.59 and 223,174.77

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Solution

The fourth proportional to 425,627.01, 638,628.59 and 223,174.77 is: 334,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,627.01 : 638,628.59 = 223,174.77 : x
  2. Step 2: Convert to fraction form
    425,627.01/638,628.59 = 223,174.77/x
  3. Step 3: Cross multiply
    425,627.01x = 638,628.59 × 223,174.77
  4. Step 4: Simplify right side
    425,627.01x = 142,525,788,688.67
  5. Step 5: Solve for x
    x = 142,525,788,688.67/425,627.01
  6. Step 6: Final answer
    x = 334,860.77

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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.