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Finding the Fourth Proportional to 346,833.56, 478,488.66 and 274,925

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Solution

The fourth proportional to 346,833.56, 478,488.66 and 274,925 is: 379,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,833.56 : 478,488.66 = 274,925 : x
  2. Step 2: Convert to fraction form
    346,833.56/478,488.66 = 274,925/x
  3. Step 3: Cross multiply
    346,833.56x = 478,488.66 × 274,925
  4. Step 4: Simplify right side
    346,833.56x = 131,548,494,850.50
  5. Step 5: Solve for x
    x = 131,548,494,850.50/346,833.56
  6. Step 6: Final answer
    x = 379,284.22

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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.