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Finding the Fourth Proportional to 303,217.40, 455,117.70 and 153,626.60

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Solution

The fourth proportional to 303,217.40, 455,117.70 and 153,626.60 is: 230,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,217.40 : 455,117.70 = 153,626.60 : x
  2. Step 2: Convert to fraction form
    303,217.40/455,117.70 = 153,626.60/x
  3. Step 3: Cross multiply
    303,217.40x = 455,117.70 × 153,626.60
  4. Step 4: Simplify right side
    303,217.40x = 69,918,184,850.82
  5. Step 5: Solve for x
    x = 69,918,184,850.82/303,217.40
  6. Step 6: Final answer
    x = 230,587.64

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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.