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Finding the Fourth Proportional to 243,072.86, 335,418.66 and 152,399.84

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Solution

The fourth proportional to 243,072.86, 335,418.66 and 152,399.84 is: 210,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,072.86 : 335,418.66 = 152,399.84 : x
  2. Step 2: Convert to fraction form
    243,072.86/335,418.66 = 152,399.84/x
  3. Step 3: Cross multiply
    243,072.86x = 335,418.66 × 152,399.84
  4. Step 4: Simplify right side
    243,072.86x = 51,117,748,439.92
  5. Step 5: Solve for x
    x = 51,117,748,439.92/243,072.86
  6. Step 6: Final answer
    x = 210,298.05

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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.