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Finding the Fourth Proportional to 493,267.10, 739,900.65 and 257,071.10

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Solution

The fourth proportional to 493,267.10, 739,900.65 and 257,071.10 is: 385,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,267.10 : 739,900.65 = 257,071.10 : x
  2. Step 2: Convert to fraction form
    493,267.10/739,900.65 = 257,071.10/x
  3. Step 3: Cross multiply
    493,267.10x = 739,900.65 × 257,071.10
  4. Step 4: Simplify right side
    493,267.10x = 190,207,073,986.22
  5. Step 5: Solve for x
    x = 190,207,073,986.22/493,267.10
  6. Step 6: Final answer
    x = 385,606.65

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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.