Home / 307,423.20-461,199.60-129,838.80

Finding the Fourth Proportional to 307,423.20, 461,199.60 and 129,838.80

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Solution

The fourth proportional to 307,423.20, 461,199.60 and 129,838.80 is: 194,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,423.20 : 461,199.60 = 129,838.80 : x
  2. Step 2: Convert to fraction form
    307,423.20/461,199.60 = 129,838.80/x
  3. Step 3: Cross multiply
    307,423.20x = 461,199.60 × 129,838.80
  4. Step 4: Simplify right side
    307,423.20x = 59,881,602,624.48
  5. Step 5: Solve for x
    x = 59,881,602,624.48/307,423.20
  6. Step 6: Final answer
    x = 194,785.57

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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.