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Finding the Fourth Proportional to 307,615.70, 461,423.55 and 188,902.10

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Solution

The fourth proportional to 307,615.70, 461,423.55 and 188,902.10 is: 283,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,615.70 : 461,423.55 = 188,902.10 : x
  2. Step 2: Convert to fraction form
    307,615.70/461,423.55 = 188,902.10/x
  3. Step 3: Cross multiply
    307,615.70x = 461,423.55 × 188,902.10
  4. Step 4: Simplify right side
    307,615.70x = 87,163,877,584.46
  5. Step 5: Solve for x
    x = 87,163,877,584.46/307,615.70
  6. Step 6: Final answer
    x = 283,353.15

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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.