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Finding the Fourth Proportional to 260,415.36, 359,371.35 and 145,693.44

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Solution

The fourth proportional to 260,415.36, 359,371.35 and 145,693.44 is: 201,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,415.36 : 359,371.35 = 145,693.44 : x
  2. Step 2: Convert to fraction form
    260,415.36/359,371.35 = 145,693.44/x
  3. Step 3: Cross multiply
    260,415.36x = 359,371.35 × 145,693.44
  4. Step 4: Simplify right side
    260,415.36x = 52,358,048,218.94
  5. Step 5: Solve for x
    x = 52,358,048,218.94/260,415.36
  6. Step 6: Final answer
    x = 201,055.91

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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.