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Finding the Fourth Proportional to 403,980.46, 557,492.86 and 222,695.34

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Solution

The fourth proportional to 403,980.46, 557,492.86 and 222,695.34 is: 307,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,980.46 : 557,492.86 = 222,695.34 : x
  2. Step 2: Convert to fraction form
    403,980.46/557,492.86 = 222,695.34/x
  3. Step 3: Cross multiply
    403,980.46x = 557,492.86 × 222,695.34
  4. Step 4: Simplify right side
    403,980.46x = 124,151,062,005.27
  5. Step 5: Solve for x
    x = 124,151,062,005.27/403,980.46
  6. Step 6: Final answer
    x = 307,319.47

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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.