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Finding the Fourth Proportional to 449,199, 619,824.15 and 258,176.70

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Solution

The fourth proportional to 449,199, 619,824.15 and 258,176.70 is: 356,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,199 : 619,824.15 = 258,176.70 : x
  2. Step 2: Convert to fraction form
    449,199/619,824.15 = 258,176.70/x
  3. Step 3: Cross multiply
    449,199x = 619,824.15 × 258,176.70
  4. Step 4: Simplify right side
    449,199x = 160,024,153,627.31
  5. Step 5: Solve for x
    x = 160,024,153,627.31/449,199
  6. Step 6: Final answer
    x = 356,243.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.