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Finding the Fourth Proportional to 402,467.70, 603,701.55 and 192,515.70

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Solution

The fourth proportional to 402,467.70, 603,701.55 and 192,515.70 is: 288,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,467.70 : 603,701.55 = 192,515.70 : x
  2. Step 2: Convert to fraction form
    402,467.70/603,701.55 = 192,515.70/x
  3. Step 3: Cross multiply
    402,467.70x = 603,701.55 × 192,515.70
  4. Step 4: Simplify right side
    402,467.70x = 116,222,026,489.34
  5. Step 5: Solve for x
    x = 116,222,026,489.34/402,467.70
  6. Step 6: Final answer
    x = 288,773.55

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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.