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Finding the Fourth Proportional to 495,749.70, 743,491.70 and 215,200.26

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Solution

The fourth proportional to 495,749.70, 743,491.70 and 215,200.26 is: 322,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,749.70 : 743,491.70 = 215,200.26 : x
  2. Step 2: Convert to fraction form
    495,749.70/743,491.70 = 215,200.26/x
  3. Step 3: Cross multiply
    495,749.70x = 743,491.70 × 215,200.26
  4. Step 4: Simplify right side
    495,749.70x = 159,999,607,147.84
  5. Step 5: Solve for x
    x = 159,999,607,147.84/495,749.70
  6. Step 6: Final answer
    x = 322,742.72

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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.