Home / 257,130.92-384,132.66-166,434.74

Finding the Fourth Proportional to 257,130.92, 384,132.66 and 166,434.74

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Solution

The fourth proportional to 257,130.92, 384,132.66 and 166,434.74 is: 248,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,130.92 : 384,132.66 = 166,434.74 : x
  2. Step 2: Convert to fraction form
    257,130.92/384,132.66 = 166,434.74/x
  3. Step 3: Cross multiply
    257,130.92x = 384,132.66 × 166,434.74
  4. Step 4: Simplify right side
    257,130.92x = 63,933,019,520.77
  5. Step 5: Solve for x
    x = 63,933,019,520.77/257,130.92
  6. Step 6: Final answer
    x = 248,639.96

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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.