Home / 257,152.07-385,789.67-107,309.00

Finding the Fourth Proportional to 257,152.07, 385,789.67 and 107,309.00

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Solution

The fourth proportional to 257,152.07, 385,789.67 and 107,309.00 is: 160,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152.07 : 385,789.67 = 107,309.00 : x
  2. Step 2: Convert to fraction form
    257,152.07/385,789.67 = 107,309.00/x
  3. Step 3: Cross multiply
    257,152.07x = 385,789.67 × 107,309.00
  4. Step 4: Simplify right side
    257,152.07x = 41,398,701,232.54
  5. Step 5: Solve for x
    x = 41,398,701,232.54/257,152.07
  6. Step 6: Final answer
    x = 160,989.18

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1.5x scale

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.