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Finding the Fourth Proportional to 315,477.44, 435,340.32 and 181,341.44

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Solution

The fourth proportional to 315,477.44, 435,340.32 and 181,341.44 is: 250,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,477.44 : 435,340.32 = 181,341.44 : x
  2. Step 2: Convert to fraction form
    315,477.44/435,340.32 = 181,341.44/x
  3. Step 3: Cross multiply
    315,477.44x = 435,340.32 × 181,341.44
  4. Step 4: Simplify right side
    315,477.44x = 78,945,240,518.86
  5. Step 5: Solve for x
    x = 78,945,240,518.86/315,477.44
  6. Step 6: Final answer
    x = 250,240.53

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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.