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Finding the Fourth Proportional to 477,971.55, 659,600.55 and 263,110.50

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Solution

The fourth proportional to 477,971.55, 659,600.55 and 263,110.50 is: 363,092.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,971.55 : 659,600.55 = 263,110.50 : x
  2. Step 2: Convert to fraction form
    477,971.55/659,600.55 = 263,110.50/x
  3. Step 3: Cross multiply
    477,971.55x = 659,600.55 × 263,110.50
  4. Step 4: Simplify right side
    477,971.55x = 173,547,830,510.78
  5. Step 5: Solve for x
    x = 173,547,830,510.78/477,971.55
  6. Step 6: Final answer
    x = 363,092.39

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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.