Home / 346,989.38-478,965.93-238,453.11

Finding the Fourth Proportional to 346,989.38, 478,965.93 and 238,453.11

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Solution

The fourth proportional to 346,989.38, 478,965.93 and 238,453.11 is: 329,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,989.38 : 478,965.93 = 238,453.11 : x
  2. Step 2: Convert to fraction form
    346,989.38/478,965.93 = 238,453.11/x
  3. Step 3: Cross multiply
    346,989.38x = 478,965.93 × 238,453.11
  4. Step 4: Simplify right side
    346,989.38x = 114,210,914,864.56
  5. Step 5: Solve for x
    x = 114,210,914,864.56/346,989.38
  6. Step 6: Final answer
    x = 329,148.15

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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.