Home / 353,218.23-487,426.34-200,266.71

Finding the Fourth Proportional to 353,218.23, 487,426.34 and 200,266.71

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Solution

The fourth proportional to 353,218.23, 487,426.34 and 200,266.71 is: 276,359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,218.23 : 487,426.34 = 200,266.71 : x
  2. Step 2: Convert to fraction form
    353,218.23/487,426.34 = 200,266.71/x
  3. Step 3: Cross multiply
    353,218.23x = 487,426.34 × 200,266.71
  4. Step 4: Simplify right side
    353,218.23x = 97,615,268,477.81
  5. Step 5: Solve for x
    x = 97,615,268,477.81/353,218.23
  6. Step 6: Final answer
    x = 276,359.66

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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.