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Finding the Fourth Proportional to 307,634.58, 424,365.14 and 180,285.57

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Solution

The fourth proportional to 307,634.58, 424,365.14 and 180,285.57 is: 248,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,634.58 : 424,365.14 = 180,285.57 : x
  2. Step 2: Convert to fraction form
    307,634.58/424,365.14 = 180,285.57/x
  3. Step 3: Cross multiply
    307,634.58x = 424,365.14 × 180,285.57
  4. Step 4: Simplify right side
    307,634.58x = 76,506,912,036.69
  5. Step 5: Solve for x
    x = 76,506,912,036.69/307,634.58
  6. Step 6: Final answer
    x = 248,694.12

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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.