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Finding the Fourth Proportional to 302,757.60, 454,136.40 and 144,904.80

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Solution

The fourth proportional to 302,757.60, 454,136.40 and 144,904.80 is: 217,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,757.60 : 454,136.40 = 144,904.80 : x
  2. Step 2: Convert to fraction form
    302,757.60/454,136.40 = 144,904.80/x
  3. Step 3: Cross multiply
    302,757.60x = 454,136.40 × 144,904.80
  4. Step 4: Simplify right side
    302,757.60x = 65,806,544,214.72
  5. Step 5: Solve for x
    x = 65,806,544,214.72/302,757.60
  6. Step 6: Final answer
    x = 217,357.20

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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.