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Finding the Fourth Proportional to 478,047.42, 659,692.68 and 263,189.10

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Solution

The fourth proportional to 478,047.42, 659,692.68 and 263,189.10 is: 363,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,047.42 : 659,692.68 = 263,189.10 : x
  2. Step 2: Convert to fraction form
    478,047.42/659,692.68 = 263,189.10/x
  3. Step 3: Cross multiply
    478,047.42x = 659,692.68 × 263,189.10
  4. Step 4: Simplify right side
    478,047.42x = 173,623,922,725.79
  5. Step 5: Solve for x
    x = 173,623,922,725.79/478,047.42
  6. Step 6: Final answer
    x = 363,193.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.