Home / 257,701.20-385,895.70-245,891.40

Finding the Fourth Proportional to 257,701.20, 385,895.70 and 245,891.40

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Solution

The fourth proportional to 257,701.20, 385,895.70 and 245,891.40 is: 368,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,701.20 : 385,895.70 = 245,891.40 : x
  2. Step 2: Convert to fraction form
    257,701.20/385,895.70 = 245,891.40/x
  3. Step 3: Cross multiply
    257,701.20x = 385,895.70 × 245,891.40
  4. Step 4: Simplify right side
    257,701.20x = 94,888,433,926.98
  5. Step 5: Solve for x
    x = 94,888,433,926.98/257,701.20
  6. Step 6: Final answer
    x = 368,211.07

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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.