Home / 352,386.40-528,579.60-203,087.20

Finding the Fourth Proportional to 352,386.40, 528,579.60 and 203,087.20

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Solution

The fourth proportional to 352,386.40, 528,579.60 and 203,087.20 is: 304,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,386.40 : 528,579.60 = 203,087.20 : x
  2. Step 2: Convert to fraction form
    352,386.40/528,579.60 = 203,087.20/x
  3. Step 3: Cross multiply
    352,386.40x = 528,579.60 × 203,087.20
  4. Step 4: Simplify right side
    352,386.40x = 107,347,750,941.12
  5. Step 5: Solve for x
    x = 107,347,750,941.12/352,386.40
  6. Step 6: Final answer
    x = 304,630.80

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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.