Home / 271,821.10-407,731.65-171,437.80

Finding the Fourth Proportional to 271,821.10, 407,731.65 and 171,437.80

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Solution

The fourth proportional to 271,821.10, 407,731.65 and 171,437.80 is: 257,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,821.10 : 407,731.65 = 171,437.80 : x
  2. Step 2: Convert to fraction form
    271,821.10/407,731.65 = 171,437.80/x
  3. Step 3: Cross multiply
    271,821.10x = 407,731.65 × 171,437.80
  4. Step 4: Simplify right side
    271,821.10x = 69,900,617,066.37
  5. Step 5: Solve for x
    x = 69,900,617,066.37/271,821.10
  6. Step 6: Final answer
    x = 257,156.70

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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.