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Finding the Fourth Proportional to 508,515.50, 762,477.90 and 192,800.18

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Solution

The fourth proportional to 508,515.50, 762,477.90 and 192,800.18 is: 289,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,515.50 : 762,477.90 = 192,800.18 : x
  2. Step 2: Convert to fraction form
    508,515.50/762,477.90 = 192,800.18/x
  3. Step 3: Cross multiply
    508,515.50x = 762,477.90 × 192,800.18
  4. Step 4: Simplify right side
    508,515.50x = 147,005,876,366.02
  5. Step 5: Solve for x
    x = 147,005,876,366.02/508,515.50
  6. Step 6: Final answer
    x = 289,088.29

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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.