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Finding the Fourth Proportional to 425,268.92, 637,802.60 and 121,653.71

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Solution

The fourth proportional to 425,268.92, 637,802.60 and 121,653.71 is: 182,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,268.92 : 637,802.60 = 121,653.71 : x
  2. Step 2: Convert to fraction form
    425,268.92/637,802.60 = 121,653.71/x
  3. Step 3: Cross multiply
    425,268.92x = 637,802.60 × 121,653.71
  4. Step 4: Simplify right side
    425,268.92x = 77,591,054,315.31
  5. Step 5: Solve for x
    x = 77,591,054,315.31/425,268.92
  6. Step 6: Final answer
    x = 182,451.74

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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.