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Finding the Fourth Proportional to 213,337.72, 320,006.46 and 55,565.80

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Solution

The fourth proportional to 213,337.72, 320,006.46 and 55,565.80 is: 83,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,337.72 : 320,006.46 = 55,565.80 : x
  2. Step 2: Convert to fraction form
    213,337.72/320,006.46 = 55,565.80/x
  3. Step 3: Cross multiply
    213,337.72x = 320,006.46 × 55,565.80
  4. Step 4: Simplify right side
    213,337.72x = 17,781,414,955.07
  5. Step 5: Solve for x
    x = 17,781,414,955.07/213,337.72
  6. Step 6: Final answer
    x = 83,348.67

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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.