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Finding the Fourth Proportional to 275,279.40, 413,178.30 and 170,303.40

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Solution

The fourth proportional to 275,279.40, 413,178.30 and 170,303.40 is: 255,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,279.40 : 413,178.30 = 170,303.40 : x
  2. Step 2: Convert to fraction form
    275,279.40/413,178.30 = 170,303.40/x
  3. Step 3: Cross multiply
    275,279.40x = 413,178.30 × 170,303.40
  4. Step 4: Simplify right side
    275,279.40x = 70,365,669,296.22
  5. Step 5: Solve for x
    x = 70,365,669,296.22/275,279.40
  6. Step 6: Final answer
    x = 255,615.46

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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.