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Finding the Fourth Proportional to 191,573.30, 287,377.27 and 73,245.67

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Solution

The fourth proportional to 191,573.30, 287,377.27 and 73,245.67 is: 109,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,573.30 : 287,377.27 = 73,245.67 : x
  2. Step 2: Convert to fraction form
    191,573.30/287,377.27 = 73,245.67/x
  3. Step 3: Cross multiply
    191,573.30x = 287,377.27 × 73,245.67
  4. Step 4: Simplify right side
    191,573.30x = 21,049,139,782.36
  5. Step 5: Solve for x
    x = 21,049,139,782.36/191,573.30
  6. Step 6: Final answer
    x = 109,875.12

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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.