Home / 240,030.80-331,252.56-138,056.28

Finding the Fourth Proportional to 240,030.80, 331,252.56 and 138,056.28

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Solution

The fourth proportional to 240,030.80, 331,252.56 and 138,056.28 is: 190,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,030.80 : 331,252.56 = 138,056.28 : x
  2. Step 2: Convert to fraction form
    240,030.80/331,252.56 = 138,056.28/x
  3. Step 3: Cross multiply
    240,030.80x = 331,252.56 × 138,056.28
  4. Step 4: Simplify right side
    240,030.80x = 45,731,496,174.08
  5. Step 5: Solve for x
    x = 45,731,496,174.08/240,030.80
  6. Step 6: Final answer
    x = 190,523.45

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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.