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Finding the Fourth Proportional to 403,641.82, 556,996.94 and 240,289.66

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Solution

The fourth proportional to 403,641.82, 556,996.94 and 240,289.66 is: 331,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,641.82 : 556,996.94 = 240,289.66 : x
  2. Step 2: Convert to fraction form
    403,641.82/556,996.94 = 240,289.66/x
  3. Step 3: Cross multiply
    403,641.82x = 556,996.94 × 240,289.66
  4. Step 4: Simplify right side
    403,641.82x = 133,840,605,333.64
  5. Step 5: Solve for x
    x = 133,840,605,333.64/403,641.82
  6. Step 6: Final answer
    x = 331,582.60

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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.