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Finding the Fourth Proportional to 260,208.40, 359,078.40 and 147,028.72

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Solution

The fourth proportional to 260,208.40, 359,078.40 and 147,028.72 is: 202,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,208.40 : 359,078.40 = 147,028.72 : x
  2. Step 2: Convert to fraction form
    260,208.40/359,078.40 = 147,028.72/x
  3. Step 3: Cross multiply
    260,208.40x = 359,078.40 × 147,028.72
  4. Step 4: Simplify right side
    260,208.40x = 52,794,837,531.65
  5. Step 5: Solve for x
    x = 52,794,837,531.65/260,208.40
  6. Step 6: Final answer
    x = 202,894.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.