Home / 486,298.47-729,484.60-131,307.33

Finding the Fourth Proportional to 486,298.47, 729,484.60 and 131,307.33

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Solution

The fourth proportional to 486,298.47, 729,484.60 and 131,307.33 is: 196,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,298.47 : 729,484.60 = 131,307.33 : x
  2. Step 2: Convert to fraction form
    486,298.47/729,484.60 = 131,307.33/x
  3. Step 3: Cross multiply
    486,298.47x = 729,484.60 × 131,307.33
  4. Step 4: Simplify right side
    486,298.47x = 95,786,675,102.12
  5. Step 5: Solve for x
    x = 95,786,675,102.12/486,298.47
  6. Step 6: Final answer
    x = 196,970.96

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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.