Home / 371,000.25-511,980.35-209,851.83

Finding the Fourth Proportional to 371,000.25, 511,980.35 and 209,851.83

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Solution

The fourth proportional to 371,000.25, 511,980.35 and 209,851.83 is: 289,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,000.25 : 511,980.35 = 209,851.83 : x
  2. Step 2: Convert to fraction form
    371,000.25/511,980.35 = 209,851.83/x
  3. Step 3: Cross multiply
    371,000.25x = 511,980.35 × 209,851.83
  4. Step 4: Simplify right side
    371,000.25x = 107,440,012,322.28
  5. Step 5: Solve for x
    x = 107,440,012,322.28/371,000.25
  6. Step 6: Final answer
    x = 289,595.53

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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.