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Finding the Fourth Proportional to 307,521.88, 461,302.24 and 130,005.52

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Solution

The fourth proportional to 307,521.88, 461,302.24 and 130,005.52 is: 195,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,521.88 : 461,302.24 = 130,005.52 : x
  2. Step 2: Convert to fraction form
    307,521.88/461,302.24 = 130,005.52/x
  3. Step 3: Cross multiply
    307,521.88x = 461,302.24 × 130,005.52
  4. Step 4: Simplify right side
    307,521.88x = 59,971,837,588.36
  5. Step 5: Solve for x
    x = 59,971,837,588.36/307,521.88
  6. Step 6: Final answer
    x = 195,016.49

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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.