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Finding the Fourth Proportional to 266,582.20, 399,095.70 and 238,588.60

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Solution

The fourth proportional to 266,582.20, 399,095.70 and 238,588.60 is: 357,186.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,582.20 : 399,095.70 = 238,588.60 : x
  2. Step 2: Convert to fraction form
    266,582.20/399,095.70 = 238,588.60/x
  3. Step 3: Cross multiply
    266,582.20x = 399,095.70 × 238,588.60
  4. Step 4: Simplify right side
    266,582.20x = 95,219,684,329.02
  5. Step 5: Solve for x
    x = 95,219,684,329.02/266,582.20
  6. Step 6: Final answer
    x = 357,186.96

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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.