Home / 208,329.64-287,477.58-122,279.32

Finding the Fourth Proportional to 208,329.64, 287,477.58 and 122,279.32

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Solution

The fourth proportional to 208,329.64, 287,477.58 and 122,279.32 is: 168,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,329.64 : 287,477.58 = 122,279.32 : x
  2. Step 2: Convert to fraction form
    208,329.64/287,477.58 = 122,279.32/x
  3. Step 3: Cross multiply
    208,329.64x = 287,477.58 × 122,279.32
  4. Step 4: Simplify right side
    208,329.64x = 35,152,562,997.65
  5. Step 5: Solve for x
    x = 35,152,562,997.65/208,329.64
  6. Step 6: Final answer
    x = 168,735.29

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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.