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Finding the Fourth Proportional to 505,467.76, 757,948.08 and 168,389.88

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Solution

The fourth proportional to 505,467.76, 757,948.08 and 168,389.88 is: 252,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,467.76 : 757,948.08 = 168,389.88 : x
  2. Step 2: Convert to fraction form
    505,467.76/757,948.08 = 168,389.88/x
  3. Step 3: Cross multiply
    505,467.76x = 757,948.08 × 168,389.88
  4. Step 4: Simplify right side
    505,467.76x = 127,630,786,237.43
  5. Step 5: Solve for x
    x = 127,630,786,237.43/505,467.76
  6. Step 6: Final answer
    x = 252,500.35

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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.