Home / 240,529.80-331,966.34-138,535.40

Finding the Fourth Proportional to 240,529.80, 331,966.34 and 138,535.40

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Solution

The fourth proportional to 240,529.80, 331,966.34 and 138,535.40 is: 191,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,529.80 : 331,966.34 = 138,535.40 : x
  2. Step 2: Convert to fraction form
    240,529.80/331,966.34 = 138,535.40/x
  3. Step 3: Cross multiply
    240,529.80x = 331,966.34 × 138,535.40
  4. Step 4: Simplify right side
    240,529.80x = 45,989,089,698.44
  5. Step 5: Solve for x
    x = 45,989,089,698.44/240,529.80
  6. Step 6: Final answer
    x = 191,199.13

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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.