Home / 346,927.91-478,778.79-210,939.35

Finding the Fourth Proportional to 346,927.91, 478,778.79 and 210,939.35

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Solution

The fourth proportional to 346,927.91, 478,778.79 and 210,939.35 is: 291,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,927.91 : 478,778.79 = 210,939.35 : x
  2. Step 2: Convert to fraction form
    346,927.91/478,778.79 = 210,939.35/x
  3. Step 3: Cross multiply
    346,927.91x = 478,778.79 × 210,939.35
  4. Step 4: Simplify right side
    346,927.91x = 100,993,284,362.49
  5. Step 5: Solve for x
    x = 100,993,284,362.49/346,927.91
  6. Step 6: Final answer
    x = 291,107.41

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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.