Home / 355,538.30-490,650.54-212,271.62

Finding the Fourth Proportional to 355,538.30, 490,650.54 and 212,271.62

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Solution

The fourth proportional to 355,538.30, 490,650.54 and 212,271.62 is: 292,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,538.30 : 490,650.54 = 212,271.62 : x
  2. Step 2: Convert to fraction form
    355,538.30/490,650.54 = 212,271.62/x
  3. Step 3: Cross multiply
    355,538.30x = 490,650.54 × 212,271.62
  4. Step 4: Simplify right side
    355,538.30x = 104,151,184,979.68
  5. Step 5: Solve for x
    x = 104,151,184,979.68/355,538.30
  6. Step 6: Final answer
    x = 292,939.42

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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.