Home / 240,140.32-331,463.41-138,237.77

Finding the Fourth Proportional to 240,140.32, 331,463.41 and 138,237.77

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Solution

The fourth proportional to 240,140.32, 331,463.41 and 138,237.77 is: 190,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,140.32 : 331,463.41 = 138,237.77 : x
  2. Step 2: Convert to fraction form
    240,140.32/331,463.41 = 138,237.77/x
  3. Step 3: Cross multiply
    240,140.32x = 331,463.41 × 138,237.77
  4. Step 4: Simplify right side
    240,140.32x = 45,820,763,118.06
  5. Step 5: Solve for x
    x = 45,820,763,118.06/240,140.32
  6. Step 6: Final answer
    x = 190,808.29

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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.