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Finding the Fourth Proportional to 259,458.69, 388,903.73 and 101,513.55

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Solution

The fourth proportional to 259,458.69, 388,903.73 and 101,513.55 is: 152,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,458.69 : 388,903.73 = 101,513.55 : x
  2. Step 2: Convert to fraction form
    259,458.69/388,903.73 = 101,513.55/x
  3. Step 3: Cross multiply
    259,458.69x = 388,903.73 × 101,513.55
  4. Step 4: Simplify right side
    259,458.69x = 39,478,997,732.97
  5. Step 5: Solve for x
    x = 39,478,997,732.97/259,458.69
  6. Step 6: Final answer
    x = 152,159.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.