Home / 257,987.88-356,056.20-144,810.72

Finding the Fourth Proportional to 257,987.88, 356,056.20 and 144,810.72

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Solution

The fourth proportional to 257,987.88, 356,056.20 and 144,810.72 is: 199,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,987.88 : 356,056.20 = 144,810.72 : x
  2. Step 2: Convert to fraction form
    257,987.88/356,056.20 = 144,810.72/x
  3. Step 3: Cross multiply
    257,987.88x = 356,056.20 × 144,810.72
  4. Step 4: Simplify right side
    257,987.88x = 51,560,754,682.46
  5. Step 5: Solve for x
    x = 51,560,754,682.46/257,987.88
  6. Step 6: Final answer
    x = 199,857.28

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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.