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Finding the Fourth Proportional to 323,831.72, 447,010.74 and 243,492.52

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Solution

The fourth proportional to 323,831.72, 447,010.74 and 243,492.52 is: 336,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,831.72 : 447,010.74 = 243,492.52 : x
  2. Step 2: Convert to fraction form
    323,831.72/447,010.74 = 243,492.52/x
  3. Step 3: Cross multiply
    323,831.72x = 447,010.74 × 243,492.52
  4. Step 4: Simplify right side
    323,831.72x = 108,843,771,549.67
  5. Step 5: Solve for x
    x = 108,843,771,549.67/323,831.72
  6. Step 6: Final answer
    x = 336,112.14

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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.