Home / 307,203.19-423,889.05-171,207.34

Finding the Fourth Proportional to 307,203.19, 423,889.05 and 171,207.34

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Solution

The fourth proportional to 307,203.19, 423,889.05 and 171,207.34 is: 236,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,203.19 : 423,889.05 = 171,207.34 : x
  2. Step 2: Convert to fraction form
    307,203.19/423,889.05 = 171,207.34/x
  3. Step 3: Cross multiply
    307,203.19x = 423,889.05 × 171,207.34
  4. Step 4: Simplify right side
    307,203.19x = 72,572,916,705.63
  5. Step 5: Solve for x
    x = 72,572,916,705.63/307,203.19
  6. Step 6: Final answer
    x = 236,237.51

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1.5x scale

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.