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Finding the Fourth Proportional to 401,058.28, 553,460.40 and 222,210.28

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Solution

The fourth proportional to 401,058.28, 553,460.40 and 222,210.28 is: 306,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,058.28 : 553,460.40 = 222,210.28 : x
  2. Step 2: Convert to fraction form
    401,058.28/553,460.40 = 222,210.28/x
  3. Step 3: Cross multiply
    401,058.28x = 553,460.40 × 222,210.28
  4. Step 4: Simplify right side
    401,058.28x = 122,984,590,452.91
  5. Step 5: Solve for x
    x = 122,984,590,452.91/401,058.28
  6. Step 6: Final answer
    x = 306,650.17

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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.