Home / 389,457.36-537,450.84-210,609.36

Finding the Fourth Proportional to 389,457.36, 537,450.84 and 210,609.36

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Solution

The fourth proportional to 389,457.36, 537,450.84 and 210,609.36 is: 290,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,457.36 : 537,450.84 = 210,609.36 : x
  2. Step 2: Convert to fraction form
    389,457.36/537,450.84 = 210,609.36/x
  3. Step 3: Cross multiply
    389,457.36x = 537,450.84 × 210,609.36
  4. Step 4: Simplify right side
    389,457.36x = 113,192,177,443.86
  5. Step 5: Solve for x
    x = 113,192,177,443.86/389,457.36
  6. Step 6: Final answer
    x = 290,640.75

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1.5x scale

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.