Home / 259,740.76-358,438.77-145,021.17

Finding the Fourth Proportional to 259,740.76, 358,438.77 and 145,021.17

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Solution

The fourth proportional to 259,740.76, 358,438.77 and 145,021.17 is: 200,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,740.76 : 358,438.77 = 145,021.17 : x
  2. Step 2: Convert to fraction form
    259,740.76/358,438.77 = 145,021.17/x
  3. Step 3: Cross multiply
    259,740.76x = 358,438.77 × 145,021.17
  4. Step 4: Simplify right side
    259,740.76x = 51,981,209,798.76
  5. Step 5: Solve for x
    x = 51,981,209,798.76/259,740.76
  6. Step 6: Final answer
    x = 200,127.27

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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.