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Finding the Fourth Proportional to 301,121.28, 414,504.42 and 260,266.80

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Solution

The fourth proportional to 301,121.28, 414,504.42 and 260,266.80 is: 358,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,121.28 : 414,504.42 = 260,266.80 : x
  2. Step 2: Convert to fraction form
    301,121.28/414,504.42 = 260,266.80/x
  3. Step 3: Cross multiply
    301,121.28x = 414,504.42 × 260,266.80
  4. Step 4: Simplify right side
    301,121.28x = 107,881,738,979.26
  5. Step 5: Solve for x
    x = 107,881,738,979.26/301,121.28
  6. Step 6: Final answer
    x = 358,266.74

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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.