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Finding the Fourth Proportional to 302,859.80, 454,289.70 and 283,176.80

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Solution

The fourth proportional to 302,859.80, 454,289.70 and 283,176.80 is: 424,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,859.80 : 454,289.70 = 283,176.80 : x
  2. Step 2: Convert to fraction form
    302,859.80/454,289.70 = 283,176.80/x
  3. Step 3: Cross multiply
    302,859.80x = 454,289.70 × 283,176.80
  4. Step 4: Simplify right side
    302,859.80x = 128,644,303,518.96
  5. Step 5: Solve for x
    x = 128,644,303,518.96/302,859.80
  6. Step 6: Final answer
    x = 424,765.20

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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.