Home / 309,622.07-427,281.99-171,803.50

Finding the Fourth Proportional to 309,622.07, 427,281.99 and 171,803.50

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Solution

The fourth proportional to 309,622.07, 427,281.99 and 171,803.50 is: 237,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,622.07 : 427,281.99 = 171,803.50 : x
  2. Step 2: Convert to fraction form
    309,622.07/427,281.99 = 171,803.50/x
  3. Step 3: Cross multiply
    309,622.07x = 427,281.99 × 171,803.50
  4. Step 4: Simplify right side
    309,622.07x = 73,408,541,368.97
  5. Step 5: Solve for x
    x = 73,408,541,368.97/309,622.07
  6. Step 6: Final answer
    x = 237,090.79

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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.