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Finding the Fourth Proportional to 307,458.99, 461,277.72 and 127,511.42

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Solution

The fourth proportional to 307,458.99, 461,277.72 and 127,511.42 is: 191,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,458.99 : 461,277.72 = 127,511.42 : x
  2. Step 2: Convert to fraction form
    307,458.99/461,277.72 = 127,511.42/x
  3. Step 3: Cross multiply
    307,458.99x = 461,277.72 × 127,511.42
  4. Step 4: Simplify right side
    307,458.99x = 58,818,174,785.17
  5. Step 5: Solve for x
    x = 58,818,174,785.17/307,458.99
  6. Step 6: Final answer
    x = 191,304.13

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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.