Home / 209,372.16-288,810.56-131,724.32

Finding the Fourth Proportional to 209,372.16, 288,810.56 and 131,724.32

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Solution

The fourth proportional to 209,372.16, 288,810.56 and 131,724.32 is: 181,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,372.16 : 288,810.56 = 131,724.32 : x
  2. Step 2: Convert to fraction form
    209,372.16/288,810.56 = 131,724.32/x
  3. Step 3: Cross multiply
    209,372.16x = 288,810.56 × 131,724.32
  4. Step 4: Simplify right side
    209,372.16x = 38,043,374,624.82
  5. Step 5: Solve for x
    x = 38,043,374,624.82/209,372.16
  6. Step 6: Final answer
    x = 181,702.16

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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.