Home / 525,165.20-788,136.60-209,848.40

Finding the Fourth Proportional to 525,165.20, 788,136.60 and 209,848.40

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Solution

The fourth proportional to 525,165.20, 788,136.60 and 209,848.40 is: 314,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,165.20 : 788,136.60 = 209,848.40 : x
  2. Step 2: Convert to fraction form
    525,165.20/788,136.60 = 209,848.40/x
  3. Step 3: Cross multiply
    525,165.20x = 788,136.60 × 209,848.40
  4. Step 4: Simplify right side
    525,165.20x = 165,389,204,491.44
  5. Step 5: Solve for x
    x = 165,389,204,491.44/525,165.20
  6. Step 6: Final answer
    x = 314,927.96

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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.