Home / 307,315.41-460,806.04-138,638.17

Finding the Fourth Proportional to 307,315.41, 460,806.04 and 138,638.17

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Solution

The fourth proportional to 307,315.41, 460,806.04 and 138,638.17 is: 207,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,315.41 : 460,806.04 = 138,638.17 : x
  2. Step 2: Convert to fraction form
    307,315.41/460,806.04 = 138,638.17/x
  3. Step 3: Cross multiply
    307,315.41x = 460,806.04 × 138,638.17
  4. Step 4: Simplify right side
    307,315.41x = 63,885,306,110.55
  5. Step 5: Solve for x
    x = 63,885,306,110.55/307,315.41
  6. Step 6: Final answer
    x = 207,881.88

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1.5x scale

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.