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Finding the Fourth Proportional to 302,079.70, 454,103.70 and 213,943.60

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Solution

The fourth proportional to 302,079.70, 454,103.70 and 213,943.60 is: 321,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,079.70 : 454,103.70 = 213,943.60 : x
  2. Step 2: Convert to fraction form
    302,079.70/454,103.70 = 213,943.60/x
  3. Step 3: Cross multiply
    302,079.70x = 454,103.70 × 213,943.60
  4. Step 4: Simplify right side
    302,079.70x = 97,152,580,351.32
  5. Step 5: Solve for x
    x = 97,152,580,351.32/302,079.70
  6. Step 6: Final answer
    x = 321,612.41

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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.