Home / 284,777.27-426,955-172,431.08

Finding the Fourth Proportional to 284,777.27, 426,955 and 172,431.08

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Solution

The fourth proportional to 284,777.27, 426,955 and 172,431.08 is: 258,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,777.27 : 426,955 = 172,431.08 : x
  2. Step 2: Convert to fraction form
    284,777.27/426,955 = 172,431.08/x
  3. Step 3: Cross multiply
    284,777.27x = 426,955 × 172,431.08
  4. Step 4: Simplify right side
    284,777.27x = 73,620,311,761.40
  5. Step 5: Solve for x
    x = 73,620,311,761.40/284,777.27
  6. Step 6: Final answer
    x = 258,518.92

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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.