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Finding the Fourth Proportional to 307,496.98, 461,264.91 and 129,980.62

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Solution

The fourth proportional to 307,496.98, 461,264.91 and 129,980.62 is: 194,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,496.98 : 461,264.91 = 129,980.62 : x
  2. Step 2: Convert to fraction form
    307,496.98/461,264.91 = 129,980.62/x
  3. Step 3: Cross multiply
    307,496.98x = 461,264.91 × 129,980.62
  4. Step 4: Simplify right side
    307,496.98x = 59,955,498,986.04
  5. Step 5: Solve for x
    x = 59,955,498,986.04/307,496.98
  6. Step 6: Final answer
    x = 194,979.15

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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.