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Finding the Fourth Proportional to 322,073.60, 483,628.80 and 243,276.80

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Solution

The fourth proportional to 322,073.60, 483,628.80 and 243,276.80 is: 365,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,073.60 : 483,628.80 = 243,276.80 : x
  2. Step 2: Convert to fraction form
    322,073.60/483,628.80 = 243,276.80/x
  3. Step 3: Cross multiply
    322,073.60x = 483,628.80 × 243,276.80
  4. Step 4: Simplify right side
    322,073.60x = 117,655,666,851.84
  5. Step 5: Solve for x
    x = 117,655,666,851.84/322,073.60
  6. Step 6: Final answer
    x = 365,306.77

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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.