Home / 307,717.13-424,689.78-171,779.29

Finding the Fourth Proportional to 307,717.13, 424,689.78 and 171,779.29

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Solution

The fourth proportional to 307,717.13, 424,689.78 and 171,779.29 is: 237,077.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,717.13 : 424,689.78 = 171,779.29 : x
  2. Step 2: Convert to fraction form
    307,717.13/424,689.78 = 171,779.29/x
  3. Step 3: Cross multiply
    307,717.13x = 424,689.78 × 171,779.29
  4. Step 4: Simplify right side
    307,717.13x = 72,952,908,878.66
  5. Step 5: Solve for x
    x = 72,952,908,878.66/307,717.13
  6. Step 6: Final answer
    x = 237,077.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.