Home / 219,455.47-302,873.20-123,968.32

Finding the Fourth Proportional to 219,455.47, 302,873.20 and 123,968.32

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Solution

The fourth proportional to 219,455.47, 302,873.20 and 123,968.32 is: 171,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,455.47 : 302,873.20 = 123,968.32 : x
  2. Step 2: Convert to fraction form
    219,455.47/302,873.20 = 123,968.32/x
  3. Step 3: Cross multiply
    219,455.47x = 302,873.20 × 123,968.32
  4. Step 4: Simplify right side
    219,455.47x = 37,546,681,777.02
  5. Step 5: Solve for x
    x = 37,546,681,777.02/219,455.47
  6. Step 6: Final answer
    x = 171,090.21

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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.