Home / 307,386.24-424,194.83-171,428.77

Finding the Fourth Proportional to 307,386.24, 424,194.83 and 171,428.77

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Solution

The fourth proportional to 307,386.24, 424,194.83 and 171,428.77 is: 236,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,386.24 : 424,194.83 = 171,428.77 : x
  2. Step 2: Convert to fraction form
    307,386.24/424,194.83 = 171,428.77/x
  3. Step 3: Cross multiply
    307,386.24x = 424,194.83 × 171,428.77
  4. Step 4: Simplify right side
    307,386.24x = 72,719,197,947.26
  5. Step 5: Solve for x
    x = 72,719,197,947.26/307,386.24
  6. Step 6: Final answer
    x = 236,572.72

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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.