Home / 421,719.78-581,972.94-230,733.94

Finding the Fourth Proportional to 421,719.78, 581,972.94 and 230,733.94

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Solution

The fourth proportional to 421,719.78, 581,972.94 and 230,733.94 is: 318,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,719.78 : 581,972.94 = 230,733.94 : x
  2. Step 2: Convert to fraction form
    421,719.78/581,972.94 = 230,733.94/x
  3. Step 3: Cross multiply
    421,719.78x = 581,972.94 × 230,733.94
  4. Step 4: Simplify right side
    421,719.78x = 134,280,909,419.58
  5. Step 5: Solve for x
    x = 134,280,909,419.58/421,719.78
  6. Step 6: Final answer
    x = 318,412.64

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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.