Home / 307,114.52-423,812.28-171,145.47

Finding the Fourth Proportional to 307,114.52, 423,812.28 and 171,145.47

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Solution

The fourth proportional to 307,114.52, 423,812.28 and 171,145.47 is: 236,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,114.52 : 423,812.28 = 171,145.47 : x
  2. Step 2: Convert to fraction form
    307,114.52/423,812.28 = 171,145.47/x
  3. Step 3: Cross multiply
    307,114.52x = 423,812.28 × 171,145.47
  4. Step 4: Simplify right side
    307,114.52x = 72,533,551,852.37
  5. Step 5: Solve for x
    x = 72,533,551,852.37/307,114.52
  6. Step 6: Final answer
    x = 236,177.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.