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Finding the Fourth Proportional to 370,771.74, 511,393.23 and 243,400.86

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Solution

The fourth proportional to 370,771.74, 511,393.23 and 243,400.86 is: 335,714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,771.74 : 511,393.23 = 243,400.86 : x
  2. Step 2: Convert to fraction form
    370,771.74/511,393.23 = 243,400.86/x
  3. Step 3: Cross multiply
    370,771.74x = 511,393.23 × 243,400.86
  4. Step 4: Simplify right side
    370,771.74x = 124,473,551,980.18
  5. Step 5: Solve for x
    x = 124,473,551,980.18/370,771.74
  6. Step 6: Final answer
    x = 335,714.78

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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.