Home / 243,408.12-335,898.48-134,518.20

Finding the Fourth Proportional to 243,408.12, 335,898.48 and 134,518.20

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Solution

The fourth proportional to 243,408.12, 335,898.48 and 134,518.20 is: 185,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,408.12 : 335,898.48 = 134,518.20 : x
  2. Step 2: Convert to fraction form
    243,408.12/335,898.48 = 134,518.20/x
  3. Step 3: Cross multiply
    243,408.12x = 335,898.48 × 134,518.20
  4. Step 4: Simplify right side
    243,408.12x = 45,184,458,912.34
  5. Step 5: Solve for x
    x = 45,184,458,912.34/243,408.12
  6. Step 6: Final answer
    x = 185,632.50

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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.