Home / 353,109.60-528,973.20-212,450.40

Finding the Fourth Proportional to 353,109.60, 528,973.20 and 212,450.40

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Solution

The fourth proportional to 353,109.60, 528,973.20 and 212,450.40 is: 318,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,109.60 : 528,973.20 = 212,450.40 : x
  2. Step 2: Convert to fraction form
    353,109.60/528,973.20 = 212,450.40/x
  3. Step 3: Cross multiply
    353,109.60x = 528,973.20 × 212,450.40
  4. Step 4: Simplify right side
    353,109.60x = 112,380,567,929.28
  5. Step 5: Solve for x
    x = 112,380,567,929.28/353,109.60
  6. Step 6: Final answer
    x = 318,259.74

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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.