Home / 279,461.25-385,656.57-152,137.80

Finding the Fourth Proportional to 279,461.25, 385,656.57 and 152,137.80

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Solution

The fourth proportional to 279,461.25, 385,656.57 and 152,137.80 is: 209,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,461.25 : 385,656.57 = 152,137.80 : x
  2. Step 2: Convert to fraction form
    279,461.25/385,656.57 = 152,137.80/x
  3. Step 3: Cross multiply
    279,461.25x = 385,656.57 × 152,137.80
  4. Step 4: Simplify right side
    279,461.25x = 58,672,942,115.35
  5. Step 5: Solve for x
    x = 58,672,942,115.35/279,461.25
  6. Step 6: Final answer
    x = 209,950.19

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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.