Home / 380,060.56-570,315.46-140,342.35

Finding the Fourth Proportional to 380,060.56, 570,315.46 and 140,342.35

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Solution

The fourth proportional to 380,060.56, 570,315.46 and 140,342.35 is: 210,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,060.56 : 570,315.46 = 140,342.35 : x
  2. Step 2: Convert to fraction form
    380,060.56/570,315.46 = 140,342.35/x
  3. Step 3: Cross multiply
    380,060.56x = 570,315.46 × 140,342.35
  4. Step 4: Simplify right side
    380,060.56x = 80,039,409,454.84
  5. Step 5: Solve for x
    x = 80,039,409,454.84/380,060.56
  6. Step 6: Final answer
    x = 210,596.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.