Home / 390,464.02-585,786.26-165,831.81

Finding the Fourth Proportional to 390,464.02, 585,786.26 and 165,831.81

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Solution

The fourth proportional to 390,464.02, 585,786.26 and 165,831.81 is: 248,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,464.02 : 585,786.26 = 165,831.81 : x
  2. Step 2: Convert to fraction form
    390,464.02/585,786.26 = 165,831.81/x
  3. Step 3: Cross multiply
    390,464.02x = 585,786.26 × 165,831.81
  4. Step 4: Simplify right side
    390,464.02x = 97,141,995,768.93
  5. Step 5: Solve for x
    x = 97,141,995,768.93/390,464.02
  6. Step 6: Final answer
    x = 248,786.04

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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.