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Finding the Fourth Proportional to 315,005.98, 434,745.12 and 179,060.32

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Solution

The fourth proportional to 315,005.98, 434,745.12 and 179,060.32 is: 247,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,005.98 : 434,745.12 = 179,060.32 : x
  2. Step 2: Convert to fraction form
    315,005.98/434,745.12 = 179,060.32/x
  3. Step 3: Cross multiply
    315,005.98x = 434,745.12 × 179,060.32
  4. Step 4: Simplify right side
    315,005.98x = 77,845,600,305.64
  5. Step 5: Solve for x
    x = 77,845,600,305.64/315,005.98
  6. Step 6: Final answer
    x = 247,124.20

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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.