Home / 371,769.81-513,030.57-218,772.76

Finding the Fourth Proportional to 371,769.81, 513,030.57 and 218,772.76

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Solution

The fourth proportional to 371,769.81, 513,030.57 and 218,772.76 is: 301,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,769.81 : 513,030.57 = 218,772.76 : x
  2. Step 2: Convert to fraction form
    371,769.81/513,030.57 = 218,772.76/x
  3. Step 3: Cross multiply
    371,769.81x = 513,030.57 × 218,772.76
  4. Step 4: Simplify right side
    371,769.81x = 112,237,113,763.27
  5. Step 5: Solve for x
    x = 112,237,113,763.27/371,769.81
  6. Step 6: Final answer
    x = 301,899.48

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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.