Home / 211,201.08-291,460.02-120,569.40

Finding the Fourth Proportional to 211,201.08, 291,460.02 and 120,569.40

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Solution

The fourth proportional to 211,201.08, 291,460.02 and 120,569.40 is: 166,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,201.08 : 291,460.02 = 120,569.40 : x
  2. Step 2: Convert to fraction form
    211,201.08/291,460.02 = 120,569.40/x
  3. Step 3: Cross multiply
    211,201.08x = 291,460.02 × 120,569.40
  4. Step 4: Simplify right side
    211,201.08x = 35,141,159,735.39
  5. Step 5: Solve for x
    x = 35,141,159,735.39/211,201.08
  6. Step 6: Final answer
    x = 166,387.22

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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.