Home / 291,837.60-437,758.02-81,477.36

Finding the Fourth Proportional to 291,837.60, 437,758.02 and 81,477.36

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Solution

The fourth proportional to 291,837.60, 437,758.02 and 81,477.36 is: 122,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,837.60 : 437,758.02 = 81,477.36 : x
  2. Step 2: Convert to fraction form
    291,837.60/437,758.02 = 81,477.36/x
  3. Step 3: Cross multiply
    291,837.60x = 437,758.02 × 81,477.36
  4. Step 4: Simplify right side
    291,837.60x = 35,667,367,788.43
  5. Step 5: Solve for x
    x = 35,667,367,788.43/291,837.60
  6. Step 6: Final answer
    x = 122,216.49

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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.