Home / 278,320.14-416,685.60-260,664.30

Finding the Fourth Proportional to 278,320.14, 416,685.60 and 260,664.30

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Solution

The fourth proportional to 278,320.14, 416,685.60 and 260,664.30 is: 390,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,320.14 : 416,685.60 = 260,664.30 : x
  2. Step 2: Convert to fraction form
    278,320.14/416,685.60 = 260,664.30/x
  3. Step 3: Cross multiply
    278,320.14x = 416,685.60 × 260,664.30
  4. Step 4: Simplify right side
    278,320.14x = 108,615,060,244.08
  5. Step 5: Solve for x
    x = 108,615,060,244.08/278,320.14
  6. Step 6: Final answer
    x = 390,252.25

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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.