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Finding the Fourth Proportional to 493,308.07, 680,765.13 and 266,953.57

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Solution

The fourth proportional to 493,308.07, 680,765.13 and 266,953.57 is: 368,395.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,308.07 : 680,765.13 = 266,953.57 : x
  2. Step 2: Convert to fraction form
    493,308.07/680,765.13 = 266,953.57/x
  3. Step 3: Cross multiply
    493,308.07x = 680,765.13 × 266,953.57
  4. Step 4: Simplify right side
    493,308.07x = 181,732,681,785.01
  5. Step 5: Solve for x
    x = 181,732,681,785.01/493,308.07
  6. Step 6: Final answer
    x = 368,395.92

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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.