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Finding the Fourth Proportional to 299,501.80, 449,252.70 and 77,885.80

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Solution

The fourth proportional to 299,501.80, 449,252.70 and 77,885.80 is: 116,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,501.80 : 449,252.70 = 77,885.80 : x
  2. Step 2: Convert to fraction form
    299,501.80/449,252.70 = 77,885.80/x
  3. Step 3: Cross multiply
    299,501.80x = 449,252.70 × 77,885.80
  4. Step 4: Simplify right side
    299,501.80x = 34,990,405,941.66
  5. Step 5: Solve for x
    x = 34,990,405,941.66/299,501.80
  6. Step 6: Final answer
    x = 116,828.70

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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.