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Finding the Fourth Proportional to 442,503.92, 610,509.48 and 251,447.60

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Solution

The fourth proportional to 442,503.92, 610,509.48 and 251,447.60 is: 346,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,503.92 : 610,509.48 = 251,447.60 : x
  2. Step 2: Convert to fraction form
    442,503.92/610,509.48 = 251,447.60/x
  3. Step 3: Cross multiply
    442,503.92x = 610,509.48 × 251,447.60
  4. Step 4: Simplify right side
    442,503.92x = 153,511,143,523.25
  5. Step 5: Solve for x
    x = 153,511,143,523.25/442,503.92
  6. Step 6: Final answer
    x = 346,914.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.