Home / 390,764.81-586,065.20-110,216.45

Finding the Fourth Proportional to 390,764.81, 586,065.20 and 110,216.45

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Solution

The fourth proportional to 390,764.81, 586,065.20 and 110,216.45 is: 165,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,764.81 : 586,065.20 = 110,216.45 : x
  2. Step 2: Convert to fraction form
    390,764.81/586,065.20 = 110,216.45/x
  3. Step 3: Cross multiply
    390,764.81x = 586,065.20 × 110,216.45
  4. Step 4: Simplify right side
    390,764.81x = 64,594,025,812.54
  5. Step 5: Solve for x
    x = 64,594,025,812.54/390,764.81
  6. Step 6: Final answer
    x = 165,301.54

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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.