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Finding the Fourth Proportional to 385,266.98, 577,900.47 and 132,553.67

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Solution

The fourth proportional to 385,266.98, 577,900.47 and 132,553.67 is: 198,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,266.98 : 577,900.47 = 132,553.67 : x
  2. Step 2: Convert to fraction form
    385,266.98/577,900.47 = 132,553.67/x
  3. Step 3: Cross multiply
    385,266.98x = 577,900.47 × 132,553.67
  4. Step 4: Simplify right side
    385,266.98x = 76,602,825,800.80
  5. Step 5: Solve for x
    x = 76,602,825,800.80/385,266.98
  6. Step 6: Final answer
    x = 198,830.50

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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.