Home / 290,743.11-436,030.38-113,210.55

Finding the Fourth Proportional to 290,743.11, 436,030.38 and 113,210.55

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Solution

The fourth proportional to 290,743.11, 436,030.38 and 113,210.55 is: 169,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,743.11 : 436,030.38 = 113,210.55 : x
  2. Step 2: Convert to fraction form
    290,743.11/436,030.38 = 113,210.55/x
  3. Step 3: Cross multiply
    290,743.11x = 436,030.38 × 113,210.55
  4. Step 4: Simplify right side
    290,743.11x = 49,363,239,136.51
  5. Step 5: Solve for x
    x = 49,363,239,136.51/290,743.11
  6. Step 6: Final answer
    x = 169,783.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.