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Finding the Fourth Proportional to 320,183.99, 480,275.98 and 120,549.16

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Solution

The fourth proportional to 320,183.99, 480,275.98 and 120,549.16 is: 180,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,183.99 : 480,275.98 = 120,549.16 : x
  2. Step 2: Convert to fraction form
    320,183.99/480,275.98 = 120,549.16/x
  3. Step 3: Cross multiply
    320,183.99x = 480,275.98 × 120,549.16
  4. Step 4: Simplify right side
    320,183.99x = 57,896,865,957.18
  5. Step 5: Solve for x
    x = 57,896,865,957.18/320,183.99
  6. Step 6: Final answer
    x = 180,823.74

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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.