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Finding the Fourth Proportional to 545,758.23, 818,618.88 and 166,663.65

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Solution

The fourth proportional to 545,758.23, 818,618.88 and 166,663.65 is: 249,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,758.23 : 818,618.88 = 166,663.65 : x
  2. Step 2: Convert to fraction form
    545,758.23/818,618.88 = 166,663.65/x
  3. Step 3: Cross multiply
    545,758.23x = 818,618.88 × 166,663.65
  4. Step 4: Simplify right side
    545,758.23x = 136,434,010,499.71
  5. Step 5: Solve for x
    x = 136,434,010,499.71/545,758.23
  6. Step 6: Final answer
    x = 249,989.84

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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.