Home / 217,604.06-326,170.67-91,312.91

Finding the Fourth Proportional to 217,604.06, 326,170.67 and 91,312.91

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Solution

The fourth proportional to 217,604.06, 326,170.67 and 91,312.91 is: 136,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,604.06 : 326,170.67 = 91,312.91 : x
  2. Step 2: Convert to fraction form
    217,604.06/326,170.67 = 91,312.91/x
  3. Step 3: Cross multiply
    217,604.06x = 326,170.67 × 91,312.91
  4. Step 4: Simplify right side
    217,604.06x = 29,783,590,946.93
  5. Step 5: Solve for x
    x = 29,783,590,946.93/217,604.06
  6. Step 6: Final answer
    x = 136,870.57

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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.