Home / 307,215.36-423,915.35-171,233.17

Finding the Fourth Proportional to 307,215.36, 423,915.35 and 171,233.17

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Solution

The fourth proportional to 307,215.36, 423,915.35 and 171,233.17 is: 236,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,215.36 : 423,915.35 = 171,233.17 : x
  2. Step 2: Convert to fraction form
    307,215.36/423,915.35 = 171,233.17/x
  3. Step 3: Cross multiply
    307,215.36x = 423,915.35 × 171,233.17
  4. Step 4: Simplify right side
    307,215.36x = 72,588,369,192.16
  5. Step 5: Solve for x
    x = 72,588,369,192.16/307,215.36
  6. Step 6: Final answer
    x = 236,278.45

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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.