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Finding the Fourth Proportional to 360,512.64, 540,845.10 and 135,868.32

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Solution

The fourth proportional to 360,512.64, 540,845.10 and 135,868.32 is: 203,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,512.64 : 540,845.10 = 135,868.32 : x
  2. Step 2: Convert to fraction form
    360,512.64/540,845.10 = 135,868.32/x
  3. Step 3: Cross multiply
    360,512.64x = 540,845.10 × 135,868.32
  4. Step 4: Simplify right side
    360,512.64x = 73,483,715,117.23
  5. Step 5: Solve for x
    x = 73,483,715,117.23/360,512.64
  6. Step 6: Final answer
    x = 203,831.18

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1.5x scale

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.