Home / 208,331.64-287,480.34-122,281.32

Finding the Fourth Proportional to 208,331.64, 287,480.34 and 122,281.32

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Solution

The fourth proportional to 208,331.64, 287,480.34 and 122,281.32 is: 168,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,331.64 : 287,480.34 = 122,281.32 : x
  2. Step 2: Convert to fraction form
    208,331.64/287,480.34 = 122,281.32/x
  3. Step 3: Cross multiply
    208,331.64x = 287,480.34 × 122,281.32
  4. Step 4: Simplify right side
    208,331.64x = 35,153,475,449.25
  5. Step 5: Solve for x
    x = 35,153,475,449.25/208,331.64
  6. Step 6: Final answer
    x = 168,738.05

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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.