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Finding the Fourth Proportional to 493,269.10, 739,903.65 and 257,073.10

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Solution

The fourth proportional to 493,269.10, 739,903.65 and 257,073.10 is: 385,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,269.10 : 739,903.65 = 257,073.10 : x
  2. Step 2: Convert to fraction form
    493,269.10/739,903.65 = 257,073.10/x
  3. Step 3: Cross multiply
    493,269.10x = 739,903.65 × 257,073.10
  4. Step 4: Simplify right side
    493,269.10x = 190,209,325,006.82
  5. Step 5: Solve for x
    x = 190,209,325,006.82/493,269.10
  6. Step 6: Final answer
    x = 385,609.65

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Similar ratio
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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.