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Finding the Fourth Proportional to 280,734.27, 387,482.28 and 235,340.34

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Solution

The fourth proportional to 280,734.27, 387,482.28 and 235,340.34 is: 324,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,734.27 : 387,482.28 = 235,340.34 : x
  2. Step 2: Convert to fraction form
    280,734.27/387,482.28 = 235,340.34/x
  3. Step 3: Cross multiply
    280,734.27x = 387,482.28 × 235,340.34
  4. Step 4: Simplify right side
    280,734.27x = 91,190,211,519.18
  5. Step 5: Solve for x
    x = 91,190,211,519.18/280,734.27
  6. Step 6: Final answer
    x = 324,827.50

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