Home / 320,346.96-442,055.52-177,108.72

Finding the Fourth Proportional to 320,346.96, 442,055.52 and 177,108.72

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Solution

The fourth proportional to 320,346.96, 442,055.52 and 177,108.72 is: 244,397.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,346.96 : 442,055.52 = 177,108.72 : x
  2. Step 2: Convert to fraction form
    320,346.96/442,055.52 = 177,108.72/x
  3. Step 3: Cross multiply
    320,346.96x = 442,055.52 × 177,108.72
  4. Step 4: Simplify right side
    320,346.96x = 78,291,887,316.13
  5. Step 5: Solve for x
    x = 78,291,887,316.13/320,346.96
  6. Step 6: Final answer
    x = 244,397.16

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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.