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Finding the Fourth Proportional to 301,967.60, 452,949.78 and 77,327.60

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Solution

The fourth proportional to 301,967.60, 452,949.78 and 77,327.60 is: 115,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,967.60 : 452,949.78 = 77,327.60 : x
  2. Step 2: Convert to fraction form
    301,967.60/452,949.78 = 77,327.60/x
  3. Step 3: Cross multiply
    301,967.60x = 452,949.78 × 77,327.60
  4. Step 4: Simplify right side
    301,967.60x = 35,025,519,407.93
  5. Step 5: Solve for x
    x = 35,025,519,407.93/301,967.60
  6. Step 6: Final answer
    x = 115,990.99

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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.