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Finding the Fourth Proportional to 370,478.57, 511,047.23 and 223,201.13

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Solution

The fourth proportional to 370,478.57, 511,047.23 and 223,201.13 is: 307,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,478.57 : 511,047.23 = 223,201.13 : x
  2. Step 2: Convert to fraction form
    370,478.57/511,047.23 = 223,201.13/x
  3. Step 3: Cross multiply
    370,478.57x = 511,047.23 × 223,201.13
  4. Step 4: Simplify right side
    370,478.57x = 114,066,315,548.13
  5. Step 5: Solve for x
    x = 114,066,315,548.13/370,478.57
  6. Step 6: Final answer
    x = 307,889.11

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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.