Home / 257,032.40-354,455.88-200,423.12

Finding the Fourth Proportional to 257,032.40, 354,455.88 and 200,423.12

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Solution

The fourth proportional to 257,032.40, 354,455.88 and 200,423.12 is: 276,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,032.40 : 354,455.88 = 200,423.12 : x
  2. Step 2: Convert to fraction form
    257,032.40/354,455.88 = 200,423.12/x
  3. Step 3: Cross multiply
    257,032.40x = 354,455.88 × 200,423.12
  4. Step 4: Simplify right side
    257,032.40x = 71,041,153,371.95
  5. Step 5: Solve for x
    x = 71,041,153,371.95/257,032.40
  6. Step 6: Final answer
    x = 276,389.88

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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.