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Finding the Fourth Proportional to 207,403.60, 310,327.80 and 188,741.20

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Solution

The fourth proportional to 207,403.60, 310,327.80 and 188,741.20 is: 282,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,403.60 : 310,327.80 = 188,741.20 : x
  2. Step 2: Convert to fraction form
    207,403.60/310,327.80 = 188,741.20/x
  3. Step 3: Cross multiply
    207,403.60x = 310,327.80 × 188,741.20
  4. Step 4: Simplify right side
    207,403.60x = 58,571,641,365.36
  5. Step 5: Solve for x
    x = 58,571,641,365.36/207,403.60
  6. Step 6: Final answer
    x = 282,404.17

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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.