Home / 290,855.81-401,386.91-170,002.19

Finding the Fourth Proportional to 290,855.81, 401,386.91 and 170,002.19

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Solution

The fourth proportional to 290,855.81, 401,386.91 and 170,002.19 is: 234,606.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,855.81 : 401,386.91 = 170,002.19 : x
  2. Step 2: Convert to fraction form
    290,855.81/401,386.91 = 170,002.19/x
  3. Step 3: Cross multiply
    290,855.81x = 401,386.91 × 170,002.19
  4. Step 4: Simplify right side
    290,855.81x = 68,236,650,880.39
  5. Step 5: Solve for x
    x = 68,236,650,880.39/290,855.81
  6. Step 6: Final answer
    x = 234,606.46

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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.