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Finding the Fourth Proportional to 302,013.20, 453,019.80 and 202,480.40

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Solution

The fourth proportional to 302,013.20, 453,019.80 and 202,480.40 is: 303,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,013.20 : 453,019.80 = 202,480.40 : x
  2. Step 2: Convert to fraction form
    302,013.20/453,019.80 = 202,480.40/x
  3. Step 3: Cross multiply
    302,013.20x = 453,019.80 × 202,480.40
  4. Step 4: Simplify right side
    302,013.20x = 91,727,630,311.92
  5. Step 5: Solve for x
    x = 91,727,630,311.92/302,013.20
  6. Step 6: Final answer
    x = 303,720.60

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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.