Home / 307,077.36-423,762.40-171,117.03

Finding the Fourth Proportional to 307,077.36, 423,762.40 and 171,117.03

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Solution

The fourth proportional to 307,077.36, 423,762.40 and 171,117.03 is: 236,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,077.36 : 423,762.40 = 171,117.03 : x
  2. Step 2: Convert to fraction form
    307,077.36/423,762.40 = 171,117.03/x
  3. Step 3: Cross multiply
    307,077.36x = 423,762.40 × 171,117.03
  4. Step 4: Simplify right side
    307,077.36x = 72,512,963,313.67
  5. Step 5: Solve for x
    x = 72,512,963,313.67/307,077.36
  6. Step 6: Final answer
    x = 236,139.07

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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.