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Finding the Fourth Proportional to 242,783.93, 335,038.16 and 135,351.20

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Solution

The fourth proportional to 242,783.93, 335,038.16 and 135,351.20 is: 186,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,783.93 : 335,038.16 = 135,351.20 : x
  2. Step 2: Convert to fraction form
    242,783.93/335,038.16 = 135,351.20/x
  3. Step 3: Cross multiply
    242,783.93x = 335,038.16 × 135,351.20
  4. Step 4: Simplify right side
    242,783.93x = 45,347,814,649.85
  5. Step 5: Solve for x
    x = 45,347,814,649.85/242,783.93
  6. Step 6: Final answer
    x = 186,782.61

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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.