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Finding the Fourth Proportional to 189,007.68, 283,511.52 and 129,663.48

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Solution

The fourth proportional to 189,007.68, 283,511.52 and 129,663.48 is: 194,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.68 : 283,511.52 = 129,663.48 : x
  2. Step 2: Convert to fraction form
    189,007.68/283,511.52 = 129,663.48/x
  3. Step 3: Cross multiply
    189,007.68x = 283,511.52 × 129,663.48
  4. Step 4: Simplify right side
    189,007.68x = 36,761,090,303.29
  5. Step 5: Solve for x
    x = 36,761,090,303.29/189,007.68
  6. Step 6: Final answer
    x = 194,495.22

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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.