Home / 320,376.60-442,088.55-177,117.03

Finding the Fourth Proportional to 320,376.60, 442,088.55 and 177,117.03

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Solution

The fourth proportional to 320,376.60, 442,088.55 and 177,117.03 is: 244,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,376.60 : 442,088.55 = 177,117.03 : x
  2. Step 2: Convert to fraction form
    320,376.60/442,088.55 = 177,117.03/x
  3. Step 3: Cross multiply
    320,376.60x = 442,088.55 × 177,117.03
  4. Step 4: Simplify right side
    320,376.60x = 78,301,410,973.01
  5. Step 5: Solve for x
    x = 78,301,410,973.01/320,376.60
  6. Step 6: Final answer
    x = 244,404.28

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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.