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Finding the Fourth Proportional to 307,580.70, 423,831.51 and 226,880.40

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Solution

The fourth proportional to 307,580.70, 423,831.51 and 226,880.40 is: 312,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,580.70 : 423,831.51 = 226,880.40 : x
  2. Step 2: Convert to fraction form
    307,580.70/423,831.51 = 226,880.40/x
  3. Step 3: Cross multiply
    307,580.70x = 423,831.51 × 226,880.40
  4. Step 4: Simplify right side
    307,580.70x = 96,159,062,521.40
  5. Step 5: Solve for x
    x = 96,159,062,521.40/307,580.70
  6. Step 6: Final answer
    x = 312,630.35

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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.