Home / 318,056.10-438,911.78-174,816.10

Finding the Fourth Proportional to 318,056.10, 438,911.78 and 174,816.10

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Solution

The fourth proportional to 318,056.10, 438,911.78 and 174,816.10 is: 241,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,056.10 : 438,911.78 = 174,816.10 : x
  2. Step 2: Convert to fraction form
    318,056.10/438,911.78 = 174,816.10/x
  3. Step 3: Cross multiply
    318,056.10x = 438,911.78 × 174,816.10
  4. Step 4: Simplify right side
    318,056.10x = 76,728,845,623.66
  5. Step 5: Solve for x
    x = 76,728,845,623.66/318,056.10
  6. Step 6: Final answer
    x = 241,243.12

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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.