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Finding the Fourth Proportional to 510,455.54, 765,683.56 and 210,606.56

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Solution

The fourth proportional to 510,455.54, 765,683.56 and 210,606.56 is: 315,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,455.54 : 765,683.56 = 210,606.56 : x
  2. Step 2: Convert to fraction form
    510,455.54/765,683.56 = 210,606.56/x
  3. Step 3: Cross multiply
    510,455.54x = 765,683.56 × 210,606.56
  4. Step 4: Simplify right side
    510,455.54x = 161,257,983,358.57
  5. Step 5: Solve for x
    x = 161,257,983,358.57/510,455.54
  6. Step 6: Final answer
    x = 315,909.95

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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.