Home / 405,287.28-559,279.02-223,989.84

Finding the Fourth Proportional to 405,287.28, 559,279.02 and 223,989.84

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Solution

The fourth proportional to 405,287.28, 559,279.02 and 223,989.84 is: 309,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,287.28 : 559,279.02 = 223,989.84 : x
  2. Step 2: Convert to fraction form
    405,287.28/559,279.02 = 223,989.84/x
  3. Step 3: Cross multiply
    405,287.28x = 559,279.02 × 223,989.84
  4. Step 4: Simplify right side
    405,287.28x = 125,272,818,205.16
  5. Step 5: Solve for x
    x = 125,272,818,205.16/405,287.28
  6. Step 6: Final answer
    x = 309,096.35

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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.