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Finding the Fourth Proportional to 370,510.48, 511,324.36 and 209,372.32

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Solution

The fourth proportional to 370,510.48, 511,324.36 and 209,372.32 is: 288,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,510.48 : 511,324.36 = 209,372.32 : x
  2. Step 2: Convert to fraction form
    370,510.48/511,324.36 = 209,372.32/x
  3. Step 3: Cross multiply
    370,510.48x = 511,324.36 × 209,372.32
  4. Step 4: Simplify right side
    370,510.48x = 107,057,167,525.72
  5. Step 5: Solve for x
    x = 107,057,167,525.72/370,510.48
  6. Step 6: Final answer
    x = 288,945.05

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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.