Home / 258,319.02-387,494.94-68,776.32

Finding the Fourth Proportional to 258,319.02, 387,494.94 and 68,776.32

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Solution

The fourth proportional to 258,319.02, 387,494.94 and 68,776.32 is: 103,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,319.02 : 387,494.94 = 68,776.32 : x
  2. Step 2: Convert to fraction form
    258,319.02/387,494.94 = 68,776.32/x
  3. Step 3: Cross multiply
    258,319.02x = 387,494.94 × 68,776.32
  4. Step 4: Simplify right side
    258,319.02x = 26,650,475,991.82
  5. Step 5: Solve for x
    x = 26,650,475,991.82/258,319.02
  6. Step 6: Final answer
    x = 103,168.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.