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Finding the Fourth Proportional to 306,740.25, 460,110.42 and 140,528.25

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Solution

The fourth proportional to 306,740.25, 460,110.42 and 140,528.25 is: 210,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,740.25 : 460,110.42 = 140,528.25 : x
  2. Step 2: Convert to fraction form
    306,740.25/460,110.42 = 140,528.25/x
  3. Step 3: Cross multiply
    306,740.25x = 460,110.42 × 140,528.25
  4. Step 4: Simplify right side
    306,740.25x = 64,658,512,129.37
  5. Step 5: Solve for x
    x = 64,658,512,129.37/306,740.25
  6. Step 6: Final answer
    x = 210,792.40

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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.