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Finding the Fourth Proportional to 243,243.16, 364,899.62 and 74,777.63

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Solution

The fourth proportional to 243,243.16, 364,899.62 and 74,777.63 is: 112,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,243.16 : 364,899.62 = 74,777.63 : x
  2. Step 2: Convert to fraction form
    243,243.16/364,899.62 = 74,777.63/x
  3. Step 3: Cross multiply
    243,243.16x = 364,899.62 × 74,777.63
  4. Step 4: Simplify right side
    243,243.16x = 27,286,327,133.95
  5. Step 5: Solve for x
    x = 27,286,327,133.95/243,243.16
  6. Step 6: Final answer
    x = 112,177.16

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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.