Home / 258,184.37-387,276.85-80,692.31

Finding the Fourth Proportional to 258,184.37, 387,276.85 and 80,692.31

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Solution

The fourth proportional to 258,184.37, 387,276.85 and 80,692.31 is: 121,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,184.37 : 387,276.85 = 80,692.31 : x
  2. Step 2: Convert to fraction form
    258,184.37/387,276.85 = 80,692.31/x
  3. Step 3: Cross multiply
    258,184.37x = 387,276.85 × 80,692.31
  4. Step 4: Simplify right side
    258,184.37x = 31,250,261,699.64
  5. Step 5: Solve for x
    x = 31,250,261,699.64/258,184.37
  6. Step 6: Final answer
    x = 121,038.55

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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.