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Finding the Fourth Proportional to 260,033.60, 389,272.80 and 154,798.40

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Solution

The fourth proportional to 260,033.60, 389,272.80 and 154,798.40 is: 231,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,033.60 : 389,272.80 = 154,798.40 : x
  2. Step 2: Convert to fraction form
    260,033.60/389,272.80 = 154,798.40/x
  3. Step 3: Cross multiply
    260,033.60x = 389,272.80 × 154,798.40
  4. Step 4: Simplify right side
    260,033.60x = 60,258,806,603.52
  5. Step 5: Solve for x
    x = 60,258,806,603.52/260,033.60
  6. Step 6: Final answer
    x = 231,734.69

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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.