Home / 320,728.02-442,574.55-191,640.75

Finding the Fourth Proportional to 320,728.02, 442,574.55 and 191,640.75

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Solution

The fourth proportional to 320,728.02, 442,574.55 and 191,640.75 is: 264,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,728.02 : 442,574.55 = 191,640.75 : x
  2. Step 2: Convert to fraction form
    320,728.02/442,574.55 = 191,640.75/x
  3. Step 3: Cross multiply
    320,728.02x = 442,574.55 × 191,640.75
  4. Step 4: Simplify right side
    320,728.02x = 84,815,318,692.91
  5. Step 5: Solve for x
    x = 84,815,318,692.91/320,728.02
  6. Step 6: Final answer
    x = 264,446.24

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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.