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Finding the Fourth Proportional to 191,498.70, 287,267.70 and 73,269.48

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Solution

The fourth proportional to 191,498.70, 287,267.70 and 73,269.48 is: 109,911.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,498.70 : 287,267.70 = 73,269.48 : x
  2. Step 2: Convert to fraction form
    191,498.70/287,267.70 = 73,269.48/x
  3. Step 3: Cross multiply
    191,498.70x = 287,267.70 × 73,269.48
  4. Step 4: Simplify right side
    191,498.70x = 21,047,954,999.80
  5. Step 5: Solve for x
    x = 21,047,954,999.80/191,498.70
  6. Step 6: Final answer
    x = 109,911.74

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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.