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Finding the Fourth Proportional to 307,592.87, 424,448.69 and 186,800.31

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Solution

The fourth proportional to 307,592.87, 424,448.69 and 186,800.31 is: 257,766.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,592.87 : 424,448.69 = 186,800.31 : x
  2. Step 2: Convert to fraction form
    307,592.87/424,448.69 = 186,800.31/x
  3. Step 3: Cross multiply
    307,592.87x = 424,448.69 × 186,800.31
  4. Step 4: Simplify right side
    307,592.87x = 79,287,145,937.09
  5. Step 5: Solve for x
    x = 79,287,145,937.09/307,592.87
  6. Step 6: Final answer
    x = 257,766.53

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1.5x scale

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.