Home / 212,629.08-319,054.80-200,376.42

Finding the Fourth Proportional to 212,629.08, 319,054.80 and 200,376.42

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Solution

The fourth proportional to 212,629.08, 319,054.80 and 200,376.42 is: 300,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,629.08 : 319,054.80 = 200,376.42 : x
  2. Step 2: Convert to fraction form
    212,629.08/319,054.80 = 200,376.42/x
  3. Step 3: Cross multiply
    212,629.08x = 319,054.80 × 200,376.42
  4. Step 4: Simplify right side
    212,629.08x = 63,931,058,607.82
  5. Step 5: Solve for x
    x = 63,931,058,607.82/212,629.08
  6. Step 6: Final answer
    x = 300,669.40

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1.5x scale

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.