Home / 257,322.24-385,983.36-70,335.36

Finding the Fourth Proportional to 257,322.24, 385,983.36 and 70,335.36

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Solution

The fourth proportional to 257,322.24, 385,983.36 and 70,335.36 is: 105,503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,322.24 : 385,983.36 = 70,335.36 : x
  2. Step 2: Convert to fraction form
    257,322.24/385,983.36 = 70,335.36/x
  3. Step 3: Cross multiply
    257,322.24x = 385,983.36 × 70,335.36
  4. Step 4: Simplify right side
    257,322.24x = 27,148,278,579.61
  5. Step 5: Solve for x
    x = 27,148,278,579.61/257,322.24
  6. Step 6: Final answer
    x = 105,503.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.