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Finding the Fourth Proportional to 309,155.88, 426,634.50 and 175,032.36

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Solution

The fourth proportional to 309,155.88, 426,634.50 and 175,032.36 is: 241,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,155.88 : 426,634.50 = 175,032.36 : x
  2. Step 2: Convert to fraction form
    309,155.88/426,634.50 = 175,032.36/x
  3. Step 3: Cross multiply
    309,155.88x = 426,634.50 × 175,032.36
  4. Step 4: Simplify right side
    309,155.88x = 74,674,843,392.42
  5. Step 5: Solve for x
    x = 74,674,843,392.42/309,155.88
  6. Step 6: Final answer
    x = 241,544.31

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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.