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Finding the Fourth Proportional to 302,546.90, 453,129.15 and 178,130.90

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Solution

The fourth proportional to 302,546.90, 453,129.15 and 178,130.90 is: 266,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,546.90 : 453,129.15 = 178,130.90 : x
  2. Step 2: Convert to fraction form
    302,546.90/453,129.15 = 178,130.90/x
  3. Step 3: Cross multiply
    302,546.90x = 453,129.15 × 178,130.90
  4. Step 4: Simplify right side
    302,546.90x = 80,716,303,305.74
  5. Step 5: Solve for x
    x = 80,716,303,305.74/302,546.90
  6. Step 6: Final answer
    x = 266,789.39

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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.