Home / 291,237.26-436,856.08-80,875.22

Finding the Fourth Proportional to 291,237.26, 436,856.08 and 80,875.22

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Solution

The fourth proportional to 291,237.26, 436,856.08 and 80,875.22 is: 121,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,237.26 : 436,856.08 = 80,875.22 : x
  2. Step 2: Convert to fraction form
    291,237.26/436,856.08 = 80,875.22/x
  3. Step 3: Cross multiply
    291,237.26x = 436,856.08 × 80,875.22
  4. Step 4: Simplify right side
    291,237.26x = 35,330,831,578.34
  5. Step 5: Solve for x
    x = 35,330,831,578.34/291,237.26
  6. Step 6: Final answer
    x = 121,312.88

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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.