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Finding the Fourth Proportional to 346,663.88, 477,933.54 and 275,280.20

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Solution

The fourth proportional to 346,663.88, 477,933.54 and 275,280.20 is: 379,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,663.88 : 477,933.54 = 275,280.20 : x
  2. Step 2: Convert to fraction form
    346,663.88/477,933.54 = 275,280.20/x
  3. Step 3: Cross multiply
    346,663.88x = 477,933.54 × 275,280.20
  4. Step 4: Simplify right side
    346,663.88x = 131,565,640,477.91
  5. Step 5: Solve for x
    x = 131,565,640,477.91/346,663.88
  6. Step 6: Final answer
    x = 379,519.32

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1.5x scale

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.