Home / 318,780.18-478,057.70-94,080.51

Finding the Fourth Proportional to 318,780.18, 478,057.70 and 94,080.51

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Solution

The fourth proportional to 318,780.18, 478,057.70 and 94,080.51 is: 141,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,780.18 : 478,057.70 = 94,080.51 : x
  2. Step 2: Convert to fraction form
    318,780.18/478,057.70 = 94,080.51/x
  3. Step 3: Cross multiply
    318,780.18x = 478,057.70 × 94,080.51
  4. Step 4: Simplify right side
    318,780.18x = 44,975,911,755.02
  5. Step 5: Solve for x
    x = 44,975,911,755.02/318,780.18
  6. Step 6: Final answer
    x = 141,087.54

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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.