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Finding the Fourth Proportional to 286,751.98, 430,100.17 and 87,074.10

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Solution

The fourth proportional to 286,751.98, 430,100.17 and 87,074.10 is: 130,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,751.98 : 430,100.17 = 87,074.10 : x
  2. Step 2: Convert to fraction form
    286,751.98/430,100.17 = 87,074.10/x
  3. Step 3: Cross multiply
    286,751.98x = 430,100.17 × 87,074.10
  4. Step 4: Simplify right side
    286,751.98x = 37,450,585,212.60
  5. Step 5: Solve for x
    x = 37,450,585,212.60/286,751.98
  6. Step 6: Final answer
    x = 130,602.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.