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Finding the Fourth Proportional to 346,656.88, 477,923.88 and 275,273.20

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Solution

The fourth proportional to 346,656.88, 477,923.88 and 275,273.20 is: 379,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,656.88 : 477,923.88 = 275,273.20 : x
  2. Step 2: Convert to fraction form
    346,656.88/477,923.88 = 275,273.20/x
  3. Step 3: Cross multiply
    346,656.88x = 477,923.88 × 275,273.20
  4. Step 4: Simplify right side
    346,656.88x = 131,559,635,804.02
  5. Step 5: Solve for x
    x = 131,559,635,804.02/346,656.88
  6. Step 6: Final answer
    x = 379,509.66

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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.