Home / 311,725.02-430,180.42-168,485.07

Finding the Fourth Proportional to 311,725.02, 430,180.42 and 168,485.07

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Solution

The fourth proportional to 311,725.02, 430,180.42 and 168,485.07 is: 232,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,725.02 : 430,180.42 = 168,485.07 : x
  2. Step 2: Convert to fraction form
    311,725.02/430,180.42 = 168,485.07/x
  3. Step 3: Cross multiply
    311,725.02x = 430,180.42 × 168,485.07
  4. Step 4: Simplify right side
    311,725.02x = 72,478,978,176.33
  5. Step 5: Solve for x
    x = 72,478,978,176.33/311,725.02
  6. Step 6: Final answer
    x = 232,509.34

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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.