Home / 398,816.06-598,482.88-238,771.40

Finding the Fourth Proportional to 398,816.06, 598,482.88 and 238,771.40

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Solution

The fourth proportional to 398,816.06, 598,482.88 and 238,771.40 is: 358,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,816.06 : 598,482.88 = 238,771.40 : x
  2. Step 2: Convert to fraction form
    398,816.06/598,482.88 = 238,771.40/x
  3. Step 3: Cross multiply
    398,816.06x = 598,482.88 × 238,771.40
  4. Step 4: Simplify right side
    398,816.06x = 142,900,591,544.29
  5. Step 5: Solve for x
    x = 142,900,591,544.29/398,816.06
  6. Step 6: Final answer
    x = 358,312.03

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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.