Home / 291,515.04-437,284.08-81,171.36

Finding the Fourth Proportional to 291,515.04, 437,284.08 and 81,171.36

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Solution

The fourth proportional to 291,515.04, 437,284.08 and 81,171.36 is: 121,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,515.04 : 437,284.08 = 81,171.36 : x
  2. Step 2: Convert to fraction form
    291,515.04/437,284.08 = 81,171.36/x
  3. Step 3: Cross multiply
    291,515.04x = 437,284.08 × 81,171.36
  4. Step 4: Simplify right side
    291,515.04x = 35,494,943,479.95
  5. Step 5: Solve for x
    x = 35,494,943,479.95/291,515.04
  6. Step 6: Final answer
    x = 121,760.25

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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.