Home / 405,144.11-559,095.59-223,855.31

Finding the Fourth Proportional to 405,144.11, 559,095.59 and 223,855.31

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Solution

The fourth proportional to 405,144.11, 559,095.59 and 223,855.31 is: 308,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,144.11 : 559,095.59 = 223,855.31 : x
  2. Step 2: Convert to fraction form
    405,144.11/559,095.59 = 223,855.31/x
  3. Step 3: Cross multiply
    405,144.11x = 559,095.59 × 223,855.31
  4. Step 4: Simplify right side
    405,144.11x = 125,156,513,823.61
  5. Step 5: Solve for x
    x = 125,156,513,823.61/405,144.11
  6. Step 6: Final answer
    x = 308,918.51

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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.