Home / 291,620.50-437,431.02-81,264.04

Finding the Fourth Proportional to 291,620.50, 437,431.02 and 81,264.04

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Solution

The fourth proportional to 291,620.50, 437,431.02 and 81,264.04 is: 121,896.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,620.50 : 437,431.02 = 81,264.04 : x
  2. Step 2: Convert to fraction form
    291,620.50/437,431.02 = 81,264.04/x
  3. Step 3: Cross multiply
    291,620.50x = 437,431.02 × 81,264.04
  4. Step 4: Simplify right side
    291,620.50x = 35,547,411,906.52
  5. Step 5: Solve for x
    x = 35,547,411,906.52/291,620.50
  6. Step 6: Final answer
    x = 121,896.14

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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.