Home / 371,018.70-512,014.95-209,866.14

Finding the Fourth Proportional to 371,018.70, 512,014.95 and 209,866.14

Calculator

Solution

The fourth proportional to 371,018.70, 512,014.95 and 209,866.14 is: 289,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,018.70 : 512,014.95 = 209,866.14 : x
  2. Step 2: Convert to fraction form
    371,018.70/512,014.95 = 209,866.14/x
  3. Step 3: Cross multiply
    371,018.70x = 512,014.95 × 209,866.14
  4. Step 4: Simplify right side
    371,018.70x = 107,454,601,178.79
  5. Step 5: Solve for x
    x = 107,454,601,178.79/371,018.70
  6. Step 6: Final answer
    x = 289,620.45

Related Problems

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.