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Finding the Fourth Proportional to 243,807.09, 336,318.35 and 141,821.07

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Solution

The fourth proportional to 243,807.09, 336,318.35 and 141,821.07 is: 195,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,807.09 : 336,318.35 = 141,821.07 : x
  2. Step 2: Convert to fraction form
    243,807.09/336,318.35 = 141,821.07/x
  3. Step 3: Cross multiply
    243,807.09x = 336,318.35 × 141,821.07
  4. Step 4: Simplify right side
    243,807.09x = 47,697,027,548.53
  5. Step 5: Solve for x
    x = 47,697,027,548.53/243,807.09
  6. Step 6: Final answer
    x = 195,634.29

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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.