Home / 309,328.44-426,852.09-173,339.16

Finding the Fourth Proportional to 309,328.44, 426,852.09 and 173,339.16

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Solution

The fourth proportional to 309,328.44, 426,852.09 and 173,339.16 is: 239,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,328.44 : 426,852.09 = 173,339.16 : x
  2. Step 2: Convert to fraction form
    309,328.44/426,852.09 = 173,339.16/x
  3. Step 3: Cross multiply
    309,328.44x = 426,852.09 × 173,339.16
  4. Step 4: Simplify right side
    309,328.44x = 73,990,182,724.84
  5. Step 5: Solve for x
    x = 73,990,182,724.84/309,328.44
  6. Step 6: Final answer
    x = 239,196.18

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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.