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Finding the Fourth Proportional to 291,230.08, 401,831.04 and 163,859.20

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Solution

The fourth proportional to 291,230.08, 401,831.04 and 163,859.20 is: 226,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,230.08 : 401,831.04 = 163,859.20 : x
  2. Step 2: Convert to fraction form
    291,230.08/401,831.04 = 163,859.20/x
  3. Step 3: Cross multiply
    291,230.08x = 401,831.04 × 163,859.20
  4. Step 4: Simplify right side
    291,230.08x = 65,843,712,749.57
  5. Step 5: Solve for x
    x = 65,843,712,749.57/291,230.08
  6. Step 6: Final answer
    x = 226,088.30

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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.