Home / 257,528.16-355,379.00-142,811.51

Finding the Fourth Proportional to 257,528.16, 355,379.00 and 142,811.51

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Solution

The fourth proportional to 257,528.16, 355,379.00 and 142,811.51 is: 197,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,528.16 : 355,379.00 = 142,811.51 : x
  2. Step 2: Convert to fraction form
    257,528.16/355,379.00 = 142,811.51/x
  3. Step 3: Cross multiply
    257,528.16x = 355,379.00 × 142,811.51
  4. Step 4: Simplify right side
    257,528.16x = 50,752,209,121.34
  5. Step 5: Solve for x
    x = 50,752,209,121.34/257,528.16
  6. Step 6: Final answer
    x = 197,074.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.