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Finding the Fourth Proportional to 430,899.79, 594,641.64 and 239,958.22

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Solution

The fourth proportional to 430,899.79, 594,641.64 and 239,958.22 is: 331,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,899.79 : 594,641.64 = 239,958.22 : x
  2. Step 2: Convert to fraction form
    430,899.79/594,641.64 = 239,958.22/x
  3. Step 3: Cross multiply
    430,899.79x = 594,641.64 × 239,958.22
  4. Step 4: Simplify right side
    430,899.79x = 142,689,149,472.28
  5. Step 5: Solve for x
    x = 142,689,149,472.28/430,899.79
  6. Step 6: Final answer
    x = 331,142.30

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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.