Home / 353,021.07-529,365.27-128,222.98

Finding the Fourth Proportional to 353,021.07, 529,365.27 and 128,222.98

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Solution

The fourth proportional to 353,021.07, 529,365.27 and 128,222.98 is: 192,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,021.07 : 529,365.27 = 128,222.98 : x
  2. Step 2: Convert to fraction form
    353,021.07/529,365.27 = 128,222.98/x
  3. Step 3: Cross multiply
    353,021.07x = 529,365.27 × 128,222.98
  4. Step 4: Simplify right side
    353,021.07x = 67,876,792,427.90
  5. Step 5: Solve for x
    x = 67,876,792,427.90/353,021.07
  6. Step 6: Final answer
    x = 192,274.05

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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.