Home / 393,030.38-589,670.16-140,305.46

Finding the Fourth Proportional to 393,030.38, 589,670.16 and 140,305.46

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Solution

The fourth proportional to 393,030.38, 589,670.16 and 140,305.46 is: 210,502.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,030.38 : 589,670.16 = 140,305.46 : x
  2. Step 2: Convert to fraction form
    393,030.38/589,670.16 = 140,305.46/x
  3. Step 3: Cross multiply
    393,030.38x = 589,670.16 × 140,305.46
  4. Step 4: Simplify right side
    393,030.38x = 82,733,943,047.07
  5. Step 5: Solve for x
    x = 82,733,943,047.07/393,030.38
  6. Step 6: Final answer
    x = 210,502.67

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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.