Home / 439,971.12-607,160.15-238,767.12

Finding the Fourth Proportional to 439,971.12, 607,160.15 and 238,767.12

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Solution

The fourth proportional to 439,971.12, 607,160.15 and 238,767.12 is: 329,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,971.12 : 607,160.15 = 238,767.12 : x
  2. Step 2: Convert to fraction form
    439,971.12/607,160.15 = 238,767.12/x
  3. Step 3: Cross multiply
    439,971.12x = 607,160.15 × 238,767.12
  4. Step 4: Simplify right side
    439,971.12x = 144,969,879,200.43
  5. Step 5: Solve for x
    x = 144,969,879,200.43/439,971.12
  6. Step 6: Final answer
    x = 329,498.63

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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.