Home / 320,480.16-442,146.24-246,916.80

Finding the Fourth Proportional to 320,480.16, 442,146.24 and 246,916.80

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Solution

The fourth proportional to 320,480.16, 442,146.24 and 246,916.80 is: 340,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,480.16 : 442,146.24 = 246,916.80 : x
  2. Step 2: Convert to fraction form
    320,480.16/442,146.24 = 246,916.80/x
  3. Step 3: Cross multiply
    320,480.16x = 442,146.24 × 246,916.80
  4. Step 4: Simplify right side
    320,480.16x = 109,173,334,712.83
  5. Step 5: Solve for x
    x = 109,173,334,712.83/320,480.16
  6. Step 6: Final answer
    x = 340,655.52

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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.