Home / 326,664.24-450,465.12-307,615.20

Finding the Fourth Proportional to 326,664.24, 450,465.12 and 307,615.20

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Solution

The fourth proportional to 326,664.24, 450,465.12 and 307,615.20 is: 424,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,664.24 : 450,465.12 = 307,615.20 : x
  2. Step 2: Convert to fraction form
    326,664.24/450,465.12 = 307,615.20/x
  3. Step 3: Cross multiply
    326,664.24x = 450,465.12 × 307,615.20
  4. Step 4: Simplify right side
    326,664.24x = 138,569,917,981.82
  5. Step 5: Solve for x
    x = 138,569,917,981.82/326,664.24
  6. Step 6: Final answer
    x = 424,196.78

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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.