Home / 291,619.50-437,429.52-81,263.04

Finding the Fourth Proportional to 291,619.50, 437,429.52 and 81,263.04

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Solution

The fourth proportional to 291,619.50, 437,429.52 and 81,263.04 is: 121,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,619.50 : 437,429.52 = 81,263.04 : x
  2. Step 2: Convert to fraction form
    291,619.50/437,429.52 = 81,263.04/x
  3. Step 3: Cross multiply
    291,619.50x = 437,429.52 × 81,263.04
  4. Step 4: Simplify right side
    291,619.50x = 35,546,852,580.94
  5. Step 5: Solve for x
    x = 35,546,852,580.94/291,619.50
  6. Step 6: Final answer
    x = 121,894.64

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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.