Home / 217,835.80-326,819.34-77,576.20

Finding the Fourth Proportional to 217,835.80, 326,819.34 and 77,576.20

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Solution

The fourth proportional to 217,835.80, 326,819.34 and 77,576.20 is: 116,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,835.80 : 326,819.34 = 77,576.20 : x
  2. Step 2: Convert to fraction form
    217,835.80/326,819.34 = 77,576.20/x
  3. Step 3: Cross multiply
    217,835.80x = 326,819.34 × 77,576.20
  4. Step 4: Simplify right side
    217,835.80x = 25,353,402,483.71
  5. Step 5: Solve for x
    x = 25,353,402,483.71/217,835.80
  6. Step 6: Final answer
    x = 116,387.68

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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.