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Finding the Fourth Proportional to 243,706.65, 336,316.20 and 136,276.67

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Solution

The fourth proportional to 243,706.65, 336,316.20 and 136,276.67 is: 188,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,706.65 : 336,316.20 = 136,276.67 : x
  2. Step 2: Convert to fraction form
    243,706.65/336,316.20 = 136,276.67/x
  3. Step 3: Cross multiply
    243,706.65x = 336,316.20 × 136,276.67
  4. Step 4: Simplify right side
    243,706.65x = 45,832,050,121.47
  5. Step 5: Solve for x
    x = 45,832,050,121.47/243,706.65
  6. Step 6: Final answer
    x = 188,062.37

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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.