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Finding the Fourth Proportional to 425,751.69, 638,627.53 and 173,169.59

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Solution

The fourth proportional to 425,751.69, 638,627.53 and 173,169.59 is: 259,754.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,751.69 : 638,627.53 = 173,169.59 : x
  2. Step 2: Convert to fraction form
    425,751.69/638,627.53 = 173,169.59/x
  3. Step 3: Cross multiply
    425,751.69x = 638,627.53 × 173,169.59
  4. Step 4: Simplify right side
    425,751.69x = 110,590,867,532.81
  5. Step 5: Solve for x
    x = 110,590,867,532.81/425,751.69
  6. Step 6: Final answer
    x = 259,754.38

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1.5x scale

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.