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Finding the Fourth Proportional to 240,045.12, 360,080.64 and 208,189.44

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Solution

The fourth proportional to 240,045.12, 360,080.64 and 208,189.44 is: 312,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,045.12 : 360,080.64 = 208,189.44 : x
  2. Step 2: Convert to fraction form
    240,045.12/360,080.64 = 208,189.44/x
  3. Step 3: Cross multiply
    240,045.12x = 360,080.64 × 208,189.44
  4. Step 4: Simplify right side
    240,045.12x = 74,964,986,796.44
  5. Step 5: Solve for x
    x = 74,964,986,796.44/240,045.12
  6. Step 6: Final answer
    x = 312,295.40

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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.