Home / 307,756.18-424,724.88-171,816.85

Finding the Fourth Proportional to 307,756.18, 424,724.88 and 171,816.85

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Solution

The fourth proportional to 307,756.18, 424,724.88 and 171,816.85 is: 237,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,756.18 : 424,724.88 = 171,816.85 : x
  2. Step 2: Convert to fraction form
    307,756.18/424,724.88 = 171,816.85/x
  3. Step 3: Cross multiply
    307,756.18x = 424,724.88 × 171,816.85
  4. Step 4: Simplify right side
    307,756.18x = 72,974,890,998.23
  5. Step 5: Solve for x
    x = 72,974,890,998.23/307,756.18
  6. Step 6: Final answer
    x = 237,119.17

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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.