Home / 320,647.18-442,385.65-184,678.41

Finding the Fourth Proportional to 320,647.18, 442,385.65 and 184,678.41

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Solution

The fourth proportional to 320,647.18, 442,385.65 and 184,678.41 is: 254,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,647.18 : 442,385.65 = 184,678.41 : x
  2. Step 2: Convert to fraction form
    320,647.18/442,385.65 = 184,678.41/x
  3. Step 3: Cross multiply
    320,647.18x = 442,385.65 × 184,678.41
  4. Step 4: Simplify right side
    320,647.18x = 81,699,078,448.82
  5. Step 5: Solve for x
    x = 81,699,078,448.82/320,647.18
  6. Step 6: Final answer
    x = 254,794.31

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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.