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Finding the Fourth Proportional to 308,603.64, 460,854.86 and 305,263.68

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Solution

The fourth proportional to 308,603.64, 460,854.86 and 305,263.68 is: 455,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,603.64 : 460,854.86 = 305,263.68 : x
  2. Step 2: Convert to fraction form
    308,603.64/460,854.86 = 305,263.68/x
  3. Step 3: Cross multiply
    308,603.64x = 460,854.86 × 305,263.68
  4. Step 4: Simplify right side
    308,603.64x = 140,682,250,509.49
  5. Step 5: Solve for x
    x = 140,682,250,509.49/308,603.64
  6. Step 6: Final answer
    x = 455,867.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.