Home / 405,128.02-559,061.56-223,836.06

Finding the Fourth Proportional to 405,128.02, 559,061.56 and 223,836.06

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Solution

The fourth proportional to 405,128.02, 559,061.56 and 223,836.06 is: 308,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,128.02 : 559,061.56 = 223,836.06 : x
  2. Step 2: Convert to fraction form
    405,128.02/559,061.56 = 223,836.06/x
  3. Step 3: Cross multiply
    405,128.02x = 559,061.56 × 223,836.06
  4. Step 4: Simplify right side
    405,128.02x = 125,138,136,887.85
  5. Step 5: Solve for x
    x = 125,138,136,887.85/405,128.02
  6. Step 6: Final answer
    x = 308,885.42

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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.