Home / 307,516.79-461,294.64-130,000.43

Finding the Fourth Proportional to 307,516.79, 461,294.64 and 130,000.43

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Solution

The fourth proportional to 307,516.79, 461,294.64 and 130,000.43 is: 195,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,516.79 : 461,294.64 = 130,000.43 : x
  2. Step 2: Convert to fraction form
    307,516.79/461,294.64 = 130,000.43/x
  3. Step 3: Cross multiply
    307,516.79x = 461,294.64 × 130,000.43
  4. Step 4: Simplify right side
    307,516.79x = 59,968,502,709.93
  5. Step 5: Solve for x
    x = 59,968,502,709.93/307,516.79
  6. Step 6: Final answer
    x = 195,008.87

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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.