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Finding the Fourth Proportional to 283,336.90, 424,021.20 and 259,717.30

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Solution

The fourth proportional to 283,336.90, 424,021.20 and 259,717.30 is: 388,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,336.90 : 424,021.20 = 259,717.30 : x
  2. Step 2: Convert to fraction form
    283,336.90/424,021.20 = 259,717.30/x
  3. Step 3: Cross multiply
    283,336.90x = 424,021.20 × 259,717.30
  4. Step 4: Simplify right side
    283,336.90x = 110,125,641,206.76
  5. Step 5: Solve for x
    x = 110,125,641,206.76/283,336.90
  6. Step 6: Final answer
    x = 388,673.84

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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.