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Finding the Fourth Proportional to 346,655.88, 477,922.50 and 275,272.20

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Solution

The fourth proportional to 346,655.88, 477,922.50 and 275,272.20 is: 379,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,655.88 : 477,922.50 = 275,272.20 : x
  2. Step 2: Convert to fraction form
    346,655.88/477,922.50 = 275,272.20/x
  3. Step 3: Cross multiply
    346,655.88x = 477,922.50 × 275,272.20
  4. Step 4: Simplify right side
    346,655.88x = 131,558,778,004.50
  5. Step 5: Solve for x
    x = 131,558,778,004.50/346,655.88
  6. Step 6: Final answer
    x = 379,508.28

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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.