Home / 217,428.89-326,143.94-67,674.06

Finding the Fourth Proportional to 217,428.89, 326,143.94 and 67,674.06

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Solution

The fourth proportional to 217,428.89, 326,143.94 and 67,674.06 is: 101,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,428.89 : 326,143.94 = 67,674.06 : x
  2. Step 2: Convert to fraction form
    217,428.89/326,143.94 = 67,674.06/x
  3. Step 3: Cross multiply
    217,428.89x = 326,143.94 × 67,674.06
  4. Step 4: Simplify right side
    217,428.89x = 22,071,484,225.83
  5. Step 5: Solve for x
    x = 22,071,484,225.83/217,428.89
  6. Step 6: Final answer
    x = 101,511.28

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1.5x scale

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.