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Finding the Fourth Proportional to 245,516.40, 344,422.80 and 245,516.40

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Solution

The fourth proportional to 245,516.40, 344,422.80 and 245,516.40 is: 344,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,516.40 : 344,422.80 = 245,516.40 : x
  2. Step 2: Convert to fraction form
    245,516.40/344,422.80 = 245,516.40/x
  3. Step 3: Cross multiply
    245,516.40x = 344,422.80 × 245,516.40
  4. Step 4: Simplify right side
    245,516.40x = 84,561,445,933.92
  5. Step 5: Solve for x
    x = 84,561,445,933.92/245,516.40
  6. Step 6: Final answer
    x = 344,422.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.