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Finding the Fourth Proportional to 345,999.31, 477,477.52 and 187,023.31

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Solution

The fourth proportional to 345,999.31, 477,477.52 and 187,023.31 is: 258,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,999.31 : 477,477.52 = 187,023.31 : x
  2. Step 2: Convert to fraction form
    345,999.31/477,477.52 = 187,023.31/x
  3. Step 3: Cross multiply
    345,999.31x = 477,477.52 × 187,023.31
  4. Step 4: Simplify right side
    345,999.31x = 89,299,425,305.87
  5. Step 5: Solve for x
    x = 89,299,425,305.87/345,999.31
  6. Step 6: Final answer
    x = 258,091.34

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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.