Home / 405,280.12-559,356.02-235,612.66

Finding the Fourth Proportional to 405,280.12, 559,356.02 and 235,612.66

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Solution

The fourth proportional to 405,280.12, 559,356.02 and 235,612.66 is: 325,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,280.12 : 559,356.02 = 235,612.66 : x
  2. Step 2: Convert to fraction form
    405,280.12/559,356.02 = 235,612.66/x
  3. Step 3: Cross multiply
    405,280.12x = 559,356.02 × 235,612.66
  4. Step 4: Simplify right side
    405,280.12x = 131,791,359,759.21
  5. Step 5: Solve for x
    x = 131,791,359,759.21/405,280.12
  6. Step 6: Final answer
    x = 325,185.85

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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.