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Finding the Fourth Proportional to 403,817.34, 557,266.74 and 222,529.20

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Solution

The fourth proportional to 403,817.34, 557,266.74 and 222,529.20 is: 307,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,817.34 : 557,266.74 = 222,529.20 : x
  2. Step 2: Convert to fraction form
    403,817.34/557,266.74 = 222,529.20/x
  3. Step 3: Cross multiply
    403,817.34x = 557,266.74 × 222,529.20
  4. Step 4: Simplify right side
    403,817.34x = 124,008,121,838.81
  5. Step 5: Solve for x
    x = 124,008,121,838.81/403,817.34
  6. Step 6: Final answer
    x = 307,089.64

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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.