Home / 307,721.59-424,638.52-171,764.31

Finding the Fourth Proportional to 307,721.59, 424,638.52 and 171,764.31

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Solution

The fourth proportional to 307,721.59, 424,638.52 and 171,764.31 is: 237,025.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,721.59 : 424,638.52 = 171,764.31 : x
  2. Step 2: Convert to fraction form
    307,721.59/424,638.52 = 171,764.31/x
  3. Step 3: Cross multiply
    307,721.59x = 424,638.52 × 171,764.31
  4. Step 4: Simplify right side
    307,721.59x = 72,937,742,387.22
  5. Step 5: Solve for x
    x = 72,937,742,387.22/307,721.59
  6. Step 6: Final answer
    x = 237,025.11

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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.