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Finding the Fourth Proportional to 306,709.80, 460,261.38 and 148,852.20

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Solution

The fourth proportional to 306,709.80, 460,261.38 and 148,852.20 is: 223,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,709.80 : 460,261.38 = 148,852.20 : x
  2. Step 2: Convert to fraction form
    306,709.80/460,261.38 = 148,852.20/x
  3. Step 3: Cross multiply
    306,709.80x = 460,261.38 × 148,852.20
  4. Step 4: Simplify right side
    306,709.80x = 68,510,918,988.04
  5. Step 5: Solve for x
    x = 68,510,918,988.04/306,709.80
  6. Step 6: Final answer
    x = 223,373.75

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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.