Home / 217,000.24-325,598.64-128,426.56

Finding the Fourth Proportional to 217,000.24, 325,598.64 and 128,426.56

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Solution

The fourth proportional to 217,000.24, 325,598.64 and 128,426.56 is: 192,698.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,000.24 : 325,598.64 = 128,426.56 : x
  2. Step 2: Convert to fraction form
    217,000.24/325,598.64 = 128,426.56/x
  3. Step 3: Cross multiply
    217,000.24x = 325,598.64 × 128,426.56
  4. Step 4: Simplify right side
    217,000.24x = 41,815,513,275.88
  5. Step 5: Solve for x
    x = 41,815,513,275.88/217,000.24
  6. Step 6: Final answer
    x = 192,698.00

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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.