Home / 320,345.75-442,003.65-191,259.07

Finding the Fourth Proportional to 320,345.75, 442,003.65 and 191,259.07

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Solution

The fourth proportional to 320,345.75, 442,003.65 and 191,259.07 is: 263,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,345.75 : 442,003.65 = 191,259.07 : x
  2. Step 2: Convert to fraction form
    320,345.75/442,003.65 = 191,259.07/x
  3. Step 3: Cross multiply
    320,345.75x = 442,003.65 × 191,259.07
  4. Step 4: Simplify right side
    320,345.75x = 84,537,207,035.61
  5. Step 5: Solve for x
    x = 84,537,207,035.61/320,345.75
  6. Step 6: Final answer
    x = 263,893.64

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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.