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Finding the Fourth Proportional to 243,808.23, 336,319.91 and 141,822.21

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Solution

The fourth proportional to 243,808.23, 336,319.91 and 141,822.21 is: 195,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,808.23 : 336,319.91 = 141,822.21 : x
  2. Step 2: Convert to fraction form
    243,808.23/336,319.91 = 141,822.21/x
  3. Step 3: Cross multiply
    243,808.23x = 336,319.91 × 141,822.21
  4. Step 4: Simplify right side
    243,808.23x = 47,697,632,194.09
  5. Step 5: Solve for x
    x = 47,697,632,194.09/243,808.23
  6. Step 6: Final answer
    x = 195,635.86

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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.