Home / 280,821.60-421,232.40-175,845.60

Finding the Fourth Proportional to 280,821.60, 421,232.40 and 175,845.60

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Solution

The fourth proportional to 280,821.60, 421,232.40 and 175,845.60 is: 263,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,821.60 : 421,232.40 = 175,845.60 : x
  2. Step 2: Convert to fraction form
    280,821.60/421,232.40 = 175,845.60/x
  3. Step 3: Cross multiply
    280,821.60x = 421,232.40 × 175,845.60
  4. Step 4: Simplify right side
    280,821.60x = 74,071,864,117.44
  5. Step 5: Solve for x
    x = 74,071,864,117.44/280,821.60
  6. Step 6: Final answer
    x = 263,768.40

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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.