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Finding the Fourth Proportional to 243,005.55, 364,508.33 and 189,861.45

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Solution

The fourth proportional to 243,005.55, 364,508.33 and 189,861.45 is: 284,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,005.55 : 364,508.33 = 189,861.45 : x
  2. Step 2: Convert to fraction form
    243,005.55/364,508.33 = 189,861.45/x
  3. Step 3: Cross multiply
    243,005.55x = 364,508.33 × 189,861.45
  4. Step 4: Simplify right side
    243,005.55x = 69,206,079,121.57
  5. Step 5: Solve for x
    x = 69,206,079,121.57/243,005.55
  6. Step 6: Final answer
    x = 284,792.18

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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.