Home / 257,134.23-384,137.67-166,438.13

Finding the Fourth Proportional to 257,134.23, 384,137.67 and 166,438.13

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Solution

The fourth proportional to 257,134.23, 384,137.67 and 166,438.13 is: 248,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,134.23 : 384,137.67 = 166,438.13 : x
  2. Step 2: Convert to fraction form
    257,134.23/384,137.67 = 166,438.13/x
  3. Step 3: Cross multiply
    257,134.23x = 384,137.67 × 166,438.13
  4. Step 4: Simplify right side
    257,134.23x = 63,935,152,704.48
  5. Step 5: Solve for x
    x = 63,935,152,704.48/257,134.23
  6. Step 6: Final answer
    x = 248,645.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.