Home / 369,331.56-509,662.77-208,220.07

Finding the Fourth Proportional to 369,331.56, 509,662.77 and 208,220.07

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Solution

The fourth proportional to 369,331.56, 509,662.77 and 208,220.07 is: 287,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,331.56 : 509,662.77 = 208,220.07 : x
  2. Step 2: Convert to fraction form
    369,331.56/509,662.77 = 208,220.07/x
  3. Step 3: Cross multiply
    369,331.56x = 509,662.77 × 208,220.07
  4. Step 4: Simplify right side
    369,331.56x = 106,122,017,645.79
  5. Step 5: Solve for x
    x = 106,122,017,645.79/369,331.56
  6. Step 6: Final answer
    x = 287,335.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.