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Finding the Fourth Proportional to 346,858, 478,664.04 and 187,882

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Solution

The fourth proportional to 346,858, 478,664.04 and 187,882 is: 259,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,858 : 478,664.04 = 187,882 : x
  2. Step 2: Convert to fraction form
    346,858/478,664.04 = 187,882/x
  3. Step 3: Cross multiply
    346,858x = 478,664.04 × 187,882
  4. Step 4: Simplify right side
    346,858x = 89,932,357,163.28
  5. Step 5: Solve for x
    x = 89,932,357,163.28/346,858
  6. Step 6: Final answer
    x = 259,277.16

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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.