Home / 370,328.43-511,084.70-209,213.05

Finding the Fourth Proportional to 370,328.43, 511,084.70 and 209,213.05

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Solution

The fourth proportional to 370,328.43, 511,084.70 and 209,213.05 is: 288,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,328.43 : 511,084.70 = 209,213.05 : x
  2. Step 2: Convert to fraction form
    370,328.43/511,084.70 = 209,213.05/x
  3. Step 3: Cross multiply
    370,328.43x = 511,084.70 × 209,213.05
  4. Step 4: Simplify right side
    370,328.43x = 106,925,588,895.34
  5. Step 5: Solve for x
    x = 106,925,588,895.34/370,328.43
  6. Step 6: Final answer
    x = 288,731.79

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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.