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Finding the Fourth Proportional to 307,111, 460,730.22 and 129,619.48

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Solution

The fourth proportional to 307,111, 460,730.22 and 129,619.48 is: 194,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,111 : 460,730.22 = 129,619.48 : x
  2. Step 2: Convert to fraction form
    307,111/460,730.22 = 129,619.48/x
  3. Step 3: Cross multiply
    307,111x = 460,730.22 × 129,619.48
  4. Step 4: Simplify right side
    307,111x = 59,719,611,536.69
  5. Step 5: Solve for x
    x = 59,719,611,536.69/307,111
  6. Step 6: Final answer
    x = 194,456.11

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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.