Home / 403,409.20-556,700.06-222,117.40

Finding the Fourth Proportional to 403,409.20, 556,700.06 and 222,117.40

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Solution

The fourth proportional to 403,409.20, 556,700.06 and 222,117.40 is: 306,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,409.20 : 556,700.06 = 222,117.40 : x
  2. Step 2: Convert to fraction form
    403,409.20/556,700.06 = 222,117.40/x
  3. Step 3: Cross multiply
    403,409.20x = 556,700.06 × 222,117.40
  4. Step 4: Simplify right side
    403,409.20x = 123,652,769,907.04
  5. Step 5: Solve for x
    x = 123,652,769,907.04/403,409.20
  6. Step 6: Final answer
    x = 306,519.46

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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.