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Finding the Fourth Proportional to 242,838.56, 364,034.27 and 163,980.20

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Solution

The fourth proportional to 242,838.56, 364,034.27 and 163,980.20 is: 245,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,838.56 : 364,034.27 = 163,980.20 : x
  2. Step 2: Convert to fraction form
    242,838.56/364,034.27 = 163,980.20/x
  3. Step 3: Cross multiply
    242,838.56x = 364,034.27 × 163,980.20
  4. Step 4: Simplify right side
    242,838.56x = 59,694,409,761.38
  5. Step 5: Solve for x
    x = 59,694,409,761.38/242,838.56
  6. Step 6: Final answer
    x = 245,819.33

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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.