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Finding the Fourth Proportional to 301,125.28, 414,509.94 and 260,270.80

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Solution

The fourth proportional to 301,125.28, 414,509.94 and 260,270.80 is: 358,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,125.28 : 414,509.94 = 260,270.80 : x
  2. Step 2: Convert to fraction form
    301,125.28/414,509.94 = 260,270.80/x
  3. Step 3: Cross multiply
    301,125.28x = 414,509.94 × 260,270.80
  4. Step 4: Simplify right side
    301,125.28x = 107,884,833,691.75
  5. Step 5: Solve for x
    x = 107,884,833,691.75/301,125.28
  6. Step 6: Final answer
    x = 358,272.26

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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.