Home / 525,163.20-788,133.60-209,846.40

Finding the Fourth Proportional to 525,163.20, 788,133.60 and 209,846.40

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Solution

The fourth proportional to 525,163.20, 788,133.60 and 209,846.40 is: 314,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,163.20 : 788,133.60 = 209,846.40 : x
  2. Step 2: Convert to fraction form
    525,163.20/788,133.60 = 209,846.40/x
  3. Step 3: Cross multiply
    525,163.20x = 788,133.60 × 209,846.40
  4. Step 4: Simplify right side
    525,163.20x = 165,386,998,679.04
  5. Step 5: Solve for x
    x = 165,386,998,679.04/525,163.20
  6. Step 6: Final answer
    x = 314,924.96

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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.