Home / 421,261.93-581,199.59-239,845.55

Finding the Fourth Proportional to 421,261.93, 581,199.59 and 239,845.55

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Solution

The fourth proportional to 421,261.93, 581,199.59 and 239,845.55 is: 330,906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,261.93 : 581,199.59 = 239,845.55 : x
  2. Step 2: Convert to fraction form
    421,261.93/581,199.59 = 239,845.55/x
  3. Step 3: Cross multiply
    421,261.93x = 581,199.59 × 239,845.55
  4. Step 4: Simplify right side
    421,261.93x = 139,398,134,124.10
  5. Step 5: Solve for x
    x = 139,398,134,124.10/421,261.93
  6. Step 6: Final answer
    x = 330,906.08

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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.