Home / 405,144.15-559,130.13-223,871.61

Finding the Fourth Proportional to 405,144.15, 559,130.13 and 223,871.61

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Solution

The fourth proportional to 405,144.15, 559,130.13 and 223,871.61 is: 308,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,144.15 : 559,130.13 = 223,871.61 : x
  2. Step 2: Convert to fraction form
    405,144.15/559,130.13 = 223,871.61/x
  3. Step 3: Cross multiply
    405,144.15x = 559,130.13 × 223,871.61
  4. Step 4: Simplify right side
    405,144.15x = 125,173,362,402.61
  5. Step 5: Solve for x
    x = 125,173,362,402.61/405,144.15
  6. Step 6: Final answer
    x = 308,960.06

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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.