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Finding the Fourth Proportional to 245,390.91, 368,086.95 and 74,614.20

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Solution

The fourth proportional to 245,390.91, 368,086.95 and 74,614.20 is: 111,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,390.91 : 368,086.95 = 74,614.20 : x
  2. Step 2: Convert to fraction form
    245,390.91/368,086.95 = 74,614.20/x
  3. Step 3: Cross multiply
    245,390.91x = 368,086.95 × 74,614.20
  4. Step 4: Simplify right side
    245,390.91x = 27,464,513,304.69
  5. Step 5: Solve for x
    x = 27,464,513,304.69/245,390.91
  6. Step 6: Final answer
    x = 111,921.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.