Home / 403,709.34-557,116.23-222,417.12

Finding the Fourth Proportional to 403,709.34, 557,116.23 and 222,417.12

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Solution

The fourth proportional to 403,709.34, 557,116.23 and 222,417.12 is: 306,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,709.34 : 557,116.23 = 222,417.12 : x
  2. Step 2: Convert to fraction form
    403,709.34/557,116.23 = 222,417.12/x
  3. Step 3: Cross multiply
    403,709.34x = 557,116.23 × 222,417.12
  4. Step 4: Simplify right side
    403,709.34x = 123,912,187,381.86
  5. Step 5: Solve for x
    x = 123,912,187,381.86/403,709.34
  6. Step 6: Final answer
    x = 306,934.16

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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.