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Finding the Fourth Proportional to 302,550.30, 453,615.36 and 133,978.76

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Solution

The fourth proportional to 302,550.30, 453,615.36 and 133,978.76 is: 200,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,550.30 : 453,615.36 = 133,978.76 : x
  2. Step 2: Convert to fraction form
    302,550.30/453,615.36 = 133,978.76/x
  3. Step 3: Cross multiply
    302,550.30x = 453,615.36 × 133,978.76
  4. Step 4: Simplify right side
    302,550.30x = 60,774,823,449.75
  5. Step 5: Solve for x
    x = 60,774,823,449.75/302,550.30
  6. Step 6: Final answer
    x = 200,875.11

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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.