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Finding the Fourth Proportional to 242,521.70, 363,847.35 and 216,407.30

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Solution

The fourth proportional to 242,521.70, 363,847.35 and 216,407.30 is: 324,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,521.70 : 363,847.35 = 216,407.30 : x
  2. Step 2: Convert to fraction form
    242,521.70/363,847.35 = 216,407.30/x
  3. Step 3: Cross multiply
    242,521.70x = 363,847.35 × 216,407.30
  4. Step 4: Simplify right side
    242,521.70x = 78,739,222,625.66
  5. Step 5: Solve for x
    x = 78,739,222,625.66/242,521.70
  6. Step 6: Final answer
    x = 324,668.77

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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.