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Finding the Fourth Proportional to 243,393.40, 365,025.30 and 74,913.40

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Solution

The fourth proportional to 243,393.40, 365,025.30 and 74,913.40 is: 112,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,393.40 : 365,025.30 = 74,913.40 : x
  2. Step 2: Convert to fraction form
    243,393.40/365,025.30 = 74,913.40/x
  3. Step 3: Cross multiply
    243,393.40x = 365,025.30 × 74,913.40
  4. Step 4: Simplify right side
    243,393.40x = 27,345,286,309.02
  5. Step 5: Solve for x
    x = 27,345,286,309.02/243,393.40
  6. Step 6: Final answer
    x = 112,350.16

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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.