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Finding the Fourth Proportional to 346,920, 478,750.24 and 187,944

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Solution

The fourth proportional to 346,920, 478,750.24 and 187,944 is: 259,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,920 : 478,750.24 = 187,944 : x
  2. Step 2: Convert to fraction form
    346,920/478,750.24 = 187,944/x
  3. Step 3: Cross multiply
    346,920x = 478,750.24 × 187,944
  4. Step 4: Simplify right side
    346,920x = 89,978,235,106.56
  5. Step 5: Solve for x
    x = 89,978,235,106.56/346,920
  6. Step 6: Final answer
    x = 259,363.07

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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.