Home / 217,386.93-326,153.34-84,271.53

Finding the Fourth Proportional to 217,386.93, 326,153.34 and 84,271.53

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Solution

The fourth proportional to 217,386.93, 326,153.34 and 84,271.53 is: 126,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,386.93 : 326,153.34 = 84,271.53 : x
  2. Step 2: Convert to fraction form
    217,386.93/326,153.34 = 84,271.53/x
  3. Step 3: Cross multiply
    217,386.93x = 326,153.34 × 84,271.53
  4. Step 4: Simplify right side
    217,386.93x = 27,485,440,976.41
  5. Step 5: Solve for x
    x = 27,485,440,976.41/217,386.93
  6. Step 6: Final answer
    x = 126,435.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.