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Finding the Fourth Proportional to 302,793.40, 454,190.10 and 286,463.80

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Solution

The fourth proportional to 302,793.40, 454,190.10 and 286,463.80 is: 429,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,793.40 : 454,190.10 = 286,463.80 : x
  2. Step 2: Convert to fraction form
    302,793.40/454,190.10 = 286,463.80/x
  3. Step 3: Cross multiply
    302,793.40x = 454,190.10 × 286,463.80
  4. Step 4: Simplify right side
    302,793.40x = 130,109,021,968.38
  5. Step 5: Solve for x
    x = 130,109,021,968.38/302,793.40
  6. Step 6: Final answer
    x = 429,695.70

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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.