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Finding the Fourth Proportional to 260,344.80, 389,480.40 and 235,461.60

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Solution

The fourth proportional to 260,344.80, 389,480.40 and 235,461.60 is: 352,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,344.80 : 389,480.40 = 235,461.60 : x
  2. Step 2: Convert to fraction form
    260,344.80/389,480.40 = 235,461.60/x
  3. Step 3: Cross multiply
    260,344.80x = 389,480.40 × 235,461.60
  4. Step 4: Simplify right side
    260,344.80x = 91,707,678,152.64
  5. Step 5: Solve for x
    x = 91,707,678,152.64/260,344.80
  6. Step 6: Final answer
    x = 352,254.70

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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.