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Finding the Fourth Proportional to 303,323.80, 454,985.70 and 298,658.20

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Solution

The fourth proportional to 303,323.80, 454,985.70 and 298,658.20 is: 447,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,323.80 : 454,985.70 = 298,658.20 : x
  2. Step 2: Convert to fraction form
    303,323.80/454,985.70 = 298,658.20/x
  3. Step 3: Cross multiply
    303,323.80x = 454,985.70 × 298,658.20
  4. Step 4: Simplify right side
    303,323.80x = 135,885,210,187.74
  5. Step 5: Solve for x
    x = 135,885,210,187.74/303,323.80
  6. Step 6: Final answer
    x = 447,987.30

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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.