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Finding the Fourth Proportional to 385,771.82, 532,373.68 and 220,196.44

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Solution

The fourth proportional to 385,771.82, 532,373.68 and 220,196.44 is: 303,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,771.82 : 532,373.68 = 220,196.44 : x
  2. Step 2: Convert to fraction form
    385,771.82/532,373.68 = 220,196.44/x
  3. Step 3: Cross multiply
    385,771.82x = 532,373.68 × 220,196.44
  4. Step 4: Simplify right side
    385,771.82x = 117,226,790,026.41
  5. Step 5: Solve for x
    x = 117,226,790,026.41/385,771.82
  6. Step 6: Final answer
    x = 303,875.98

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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.