Home / 300,943.48-415,328.88-193,769.56

Finding the Fourth Proportional to 300,943.48, 415,328.88 and 193,769.56

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Solution

The fourth proportional to 300,943.48, 415,328.88 and 193,769.56 is: 267,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,943.48 : 415,328.88 = 193,769.56 : x
  2. Step 2: Convert to fraction form
    300,943.48/415,328.88 = 193,769.56/x
  3. Step 3: Cross multiply
    300,943.48x = 415,328.88 × 193,769.56
  4. Step 4: Simplify right side
    300,943.48x = 80,478,094,332.89
  5. Step 5: Solve for x
    x = 80,478,094,332.89/300,943.48
  6. Step 6: Final answer
    x = 267,419.30

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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.