Home / 405,074.07-559,002.21-235,319.13

Finding the Fourth Proportional to 405,074.07, 559,002.21 and 235,319.13

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Solution

The fourth proportional to 405,074.07, 559,002.21 and 235,319.13 is: 324,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,074.07 : 559,002.21 = 235,319.13 : x
  2. Step 2: Convert to fraction form
    405,074.07/559,002.21 = 235,319.13/x
  3. Step 3: Cross multiply
    405,074.07x = 559,002.21 × 235,319.13
  4. Step 4: Simplify right side
    405,074.07x = 131,543,913,725.28
  5. Step 5: Solve for x
    x = 131,543,913,725.28/405,074.07
  6. Step 6: Final answer
    x = 324,740.40

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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.