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Finding the Fourth Proportional to 280,969.60, 421,454.40 and 160,903.30

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Solution

The fourth proportional to 280,969.60, 421,454.40 and 160,903.30 is: 241,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,969.60 : 421,454.40 = 160,903.30 : x
  2. Step 2: Convert to fraction form
    280,969.60/421,454.40 = 160,903.30/x
  3. Step 3: Cross multiply
    280,969.60x = 421,454.40 × 160,903.30
  4. Step 4: Simplify right side
    280,969.60x = 67,813,403,759.52
  5. Step 5: Solve for x
    x = 67,813,403,759.52/280,969.60
  6. Step 6: Final answer
    x = 241,354.95

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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.