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Finding the Fourth Proportional to 242,820.30, 364,230.45 and 219,200.70

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Solution

The fourth proportional to 242,820.30, 364,230.45 and 219,200.70 is: 328,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,820.30 : 364,230.45 = 219,200.70 : x
  2. Step 2: Convert to fraction form
    242,820.30/364,230.45 = 219,200.70/x
  3. Step 3: Cross multiply
    242,820.30x = 364,230.45 × 219,200.70
  4. Step 4: Simplify right side
    242,820.30x = 79,839,569,601.32
  5. Step 5: Solve for x
    x = 79,839,569,601.32/242,820.30
  6. Step 6: Final answer
    x = 328,801.05

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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.