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Finding the Fourth Proportional to 370,764.51, 511,659.06 and 217,809.15

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Solution

The fourth proportional to 370,764.51, 511,659.06 and 217,809.15 is: 300,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,764.51 : 511,659.06 = 217,809.15 : x
  2. Step 2: Convert to fraction form
    370,764.51/511,659.06 = 217,809.15/x
  3. Step 3: Cross multiply
    370,764.51x = 511,659.06 × 217,809.15
  4. Step 4: Simplify right side
    370,764.51x = 111,444,024,948.40
  5. Step 5: Solve for x
    x = 111,444,024,948.40/370,764.51
  6. Step 6: Final answer
    x = 300,579.00

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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.