Home / 403,890.96-557,346.79-222,602.34

Finding the Fourth Proportional to 403,890.96, 557,346.79 and 222,602.34

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Solution

The fourth proportional to 403,890.96, 557,346.79 and 222,602.34 is: 307,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,890.96 : 557,346.79 = 222,602.34 : x
  2. Step 2: Convert to fraction form
    403,890.96/557,346.79 = 222,602.34/x
  3. Step 3: Cross multiply
    403,890.96x = 557,346.79 × 222,602.34
  4. Step 4: Simplify right side
    403,890.96x = 124,066,699,645.49
  5. Step 5: Solve for x
    x = 124,066,699,645.49/403,890.96
  6. Step 6: Final answer
    x = 307,178.70

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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.