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Finding the Fourth Proportional to 255,994.74, 384,262.65 and 143,770.86

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Solution

The fourth proportional to 255,994.74, 384,262.65 and 143,770.86 is: 215,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,994.74 : 384,262.65 = 143,770.86 : x
  2. Step 2: Convert to fraction form
    255,994.74/384,262.65 = 143,770.86/x
  3. Step 3: Cross multiply
    255,994.74x = 384,262.65 × 143,770.86
  4. Step 4: Simplify right side
    255,994.74x = 55,245,771,656.38
  5. Step 5: Solve for x
    x = 55,245,771,656.38/255,994.74
  6. Step 6: Final answer
    x = 215,808.23

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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.