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Finding the Fourth Proportional to 281,774.25, 388,888.32 and 174,378.88

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Solution

The fourth proportional to 281,774.25, 388,888.32 and 174,378.88 is: 240,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,774.25 : 388,888.32 = 174,378.88 : x
  2. Step 2: Convert to fraction form
    281,774.25/388,888.32 = 174,378.88/x
  3. Step 3: Cross multiply
    281,774.25x = 388,888.32 × 174,378.88
  4. Step 4: Simplify right side
    281,774.25x = 67,813,910,826.71
  5. Step 5: Solve for x
    x = 67,813,910,826.71/281,774.25
  6. Step 6: Final answer
    x = 240,667.52

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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.