Home / 403,395.52-556,699.08-222,120.76

Finding the Fourth Proportional to 403,395.52, 556,699.08 and 222,120.76

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Solution

The fourth proportional to 403,395.52, 556,699.08 and 222,120.76 is: 306,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,395.52 : 556,699.08 = 222,120.76 : x
  2. Step 2: Convert to fraction form
    403,395.52/556,699.08 = 222,120.76/x
  3. Step 3: Cross multiply
    403,395.52x = 556,699.08 × 222,120.76
  4. Step 4: Simplify right side
    403,395.52x = 123,654,422,740.90
  5. Step 5: Solve for x
    x = 123,654,422,740.90/403,395.52
  6. Step 6: Final answer
    x = 306,533.95

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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.