Home / 403,890.72-557,346.44-222,602.10

Finding the Fourth Proportional to 403,890.72, 557,346.44 and 222,602.10

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Solution

The fourth proportional to 403,890.72, 557,346.44 and 222,602.10 is: 307,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,890.72 : 557,346.44 = 222,602.10 : x
  2. Step 2: Convert to fraction form
    403,890.72/557,346.44 = 222,602.10/x
  3. Step 3: Cross multiply
    403,890.72x = 557,346.44 × 222,602.10
  4. Step 4: Simplify right side
    403,890.72x = 124,066,486,858.51
  5. Step 5: Solve for x
    x = 124,066,486,858.51/403,890.72
  6. Step 6: Final answer
    x = 307,178.35

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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.