Home / 215,756.60-297,692.33-139,259.50

Finding the Fourth Proportional to 215,756.60, 297,692.33 and 139,259.50

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Solution

The fourth proportional to 215,756.60, 297,692.33 and 139,259.50 is: 192,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,756.60 : 297,692.33 = 139,259.50 : x
  2. Step 2: Convert to fraction form
    215,756.60/297,692.33 = 139,259.50/x
  3. Step 3: Cross multiply
    215,756.60x = 297,692.33 × 139,259.50
  4. Step 4: Simplify right side
    215,756.60x = 41,456,484,633.55
  5. Step 5: Solve for x
    x = 41,456,484,633.55/215,756.60
  6. Step 6: Final answer
    x = 192,144.69

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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.