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Finding the Fourth Proportional to 243,270.96, 364,941.36 and 74,805.45

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Solution

The fourth proportional to 243,270.96, 364,941.36 and 74,805.45 is: 112,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,270.96 : 364,941.36 = 74,805.45 : x
  2. Step 2: Convert to fraction form
    243,270.96/364,941.36 = 74,805.45/x
  3. Step 3: Cross multiply
    243,270.96x = 364,941.36 × 74,805.45
  4. Step 4: Simplify right side
    243,270.96x = 27,299,602,658.41
  5. Step 5: Solve for x
    x = 27,299,602,658.41/243,270.96
  6. Step 6: Final answer
    x = 112,218.91

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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.