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Finding the Fourth Proportional to 242,722.56, 334,860.80 and 147,194.40

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Solution

The fourth proportional to 242,722.56, 334,860.80 and 147,194.40 is: 203,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,722.56 : 334,860.80 = 147,194.40 : x
  2. Step 2: Convert to fraction form
    242,722.56/334,860.80 = 147,194.40/x
  3. Step 3: Cross multiply
    242,722.56x = 334,860.80 × 147,194.40
  4. Step 4: Simplify right side
    242,722.56x = 49,289,634,539.52
  5. Step 5: Solve for x
    x = 49,289,634,539.52/242,722.56
  6. Step 6: Final answer
    x = 203,069.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.