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Finding the Fourth Proportional to 307,485.95, 461,031.34 and 127,695.39

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Solution

The fourth proportional to 307,485.95, 461,031.34 and 127,695.39 is: 191,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,485.95 : 461,031.34 = 127,695.39 : x
  2. Step 2: Convert to fraction form
    307,485.95/461,031.34 = 127,695.39/x
  3. Step 3: Cross multiply
    307,485.95x = 461,031.34 × 127,695.39
  4. Step 4: Simplify right side
    307,485.95x = 58,871,576,763.52
  5. Step 5: Solve for x
    x = 58,871,576,763.52/307,485.95
  6. Step 6: Final answer
    x = 191,461.03

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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.