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Finding the Fourth Proportional to 243,384.74, 364,934.85 and 163,515.50

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Solution

The fourth proportional to 243,384.74, 364,934.85 and 163,515.50 is: 245,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,384.74 : 364,934.85 = 163,515.50 : x
  2. Step 2: Convert to fraction form
    243,384.74/364,934.85 = 163,515.50/x
  3. Step 3: Cross multiply
    243,384.74x = 364,934.85 × 163,515.50
  4. Step 4: Simplify right side
    243,384.74x = 59,672,504,465.18
  5. Step 5: Solve for x
    x = 59,672,504,465.18/243,384.74
  6. Step 6: Final answer
    x = 245,177.67

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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.