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Finding the Fourth Proportional to 243,532.80, 336,072.65 and 134,636.67

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Solution

The fourth proportional to 243,532.80, 336,072.65 and 134,636.67 is: 185,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,532.80 : 336,072.65 = 134,636.67 : x
  2. Step 2: Convert to fraction form
    243,532.80/336,072.65 = 134,636.67/x
  3. Step 3: Cross multiply
    243,532.80x = 336,072.65 × 134,636.67
  4. Step 4: Simplify right side
    243,532.80x = 45,247,701,800.89
  5. Step 5: Solve for x
    x = 45,247,701,800.89/243,532.80
  6. Step 6: Final answer
    x = 185,797.16

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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.