Home / 307,869.11-424,854.95-171,905.20

Finding the Fourth Proportional to 307,869.11, 424,854.95 and 171,905.20

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Solution

The fourth proportional to 307,869.11, 424,854.95 and 171,905.20 is: 237,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,869.11 : 424,854.95 = 171,905.20 : x
  2. Step 2: Convert to fraction form
    307,869.11/424,854.95 = 171,905.20/x
  3. Step 3: Cross multiply
    307,869.11x = 424,854.95 × 171,905.20
  4. Step 4: Simplify right side
    307,869.11x = 73,034,774,518.37
  5. Step 5: Solve for x
    x = 73,034,774,518.37/307,869.11
  6. Step 6: Final answer
    x = 237,226.71

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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.