Home / 309,383.16-426,852.90-173,398.23

Finding the Fourth Proportional to 309,383.16, 426,852.90 and 173,398.23

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Solution

The fourth proportional to 309,383.16, 426,852.90 and 173,398.23 is: 239,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,383.16 : 426,852.90 = 173,398.23 : x
  2. Step 2: Convert to fraction form
    309,383.16/426,852.90 = 173,398.23/x
  3. Step 3: Cross multiply
    309,383.16x = 426,852.90 × 173,398.23
  4. Step 4: Simplify right side
    309,383.16x = 74,015,537,330.37
  5. Step 5: Solve for x
    x = 74,015,537,330.37/309,383.16
  6. Step 6: Final answer
    x = 239,235.83

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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.