Home / 320,009.14-478,972.05-235,736.20

Finding the Fourth Proportional to 320,009.14, 478,972.05 and 235,736.20

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Solution

The fourth proportional to 320,009.14, 478,972.05 and 235,736.20 is: 352,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,009.14 : 478,972.05 = 235,736.20 : x
  2. Step 2: Convert to fraction form
    320,009.14/478,972.05 = 235,736.20/x
  3. Step 3: Cross multiply
    320,009.14x = 478,972.05 × 235,736.20
  4. Step 4: Simplify right side
    320,009.14x = 112,911,050,973.21
  5. Step 5: Solve for x
    x = 112,911,050,973.21/320,009.14
  6. Step 6: Final answer
    x = 352,836.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.