Home / 421,718.78-581,971.56-230,732.94

Finding the Fourth Proportional to 421,718.78, 581,971.56 and 230,732.94

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Solution

The fourth proportional to 421,718.78, 581,971.56 and 230,732.94 is: 318,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,718.78 : 581,971.56 = 230,732.94 : x
  2. Step 2: Convert to fraction form
    421,718.78/581,971.56 = 230,732.94/x
  3. Step 3: Cross multiply
    421,718.78x = 581,971.56 × 230,732.94
  4. Step 4: Simplify right side
    421,718.78x = 134,280,009,035.19
  5. Step 5: Solve for x
    x = 134,280,009,035.19/421,718.78
  6. Step 6: Final answer
    x = 318,411.26

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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.