Home / 290,427.03-400,742.28-181,518.53

Finding the Fourth Proportional to 290,427.03, 400,742.28 and 181,518.53

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Solution

The fourth proportional to 290,427.03, 400,742.28 and 181,518.53 is: 250,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,427.03 : 400,742.28 = 181,518.53 : x
  2. Step 2: Convert to fraction form
    290,427.03/400,742.28 = 181,518.53/x
  3. Step 3: Cross multiply
    290,427.03x = 400,742.28 × 181,518.53
  4. Step 4: Simplify right side
    290,427.03x = 72,742,147,570.74
  5. Step 5: Solve for x
    x = 72,742,147,570.74/290,427.03
  6. Step 6: Final answer
    x = 250,466.18

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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.