Home / 291,285.30-436,053.15-172,895.70

Finding the Fourth Proportional to 291,285.30, 436,053.15 and 172,895.70

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Solution

The fourth proportional to 291,285.30, 436,053.15 and 172,895.70 is: 258,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,285.30 : 436,053.15 = 172,895.70 : x
  2. Step 2: Convert to fraction form
    291,285.30/436,053.15 = 172,895.70/x
  3. Step 3: Cross multiply
    291,285.30x = 436,053.15 × 172,895.70
  4. Step 4: Simplify right side
    291,285.30x = 75,391,714,606.46
  5. Step 5: Solve for x
    x = 75,391,714,606.46/291,285.30
  6. Step 6: Final answer
    x = 258,824.30

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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.