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Finding the Fourth Proportional to 306,008.60, 459,085.80 and 148,107.20

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Solution

The fourth proportional to 306,008.60, 459,085.80 and 148,107.20 is: 222,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,008.60 : 459,085.80 = 148,107.20 : x
  2. Step 2: Convert to fraction form
    306,008.60/459,085.80 = 148,107.20/x
  3. Step 3: Cross multiply
    306,008.60x = 459,085.80 × 148,107.20
  4. Step 4: Simplify right side
    306,008.60x = 67,993,912,397.76
  5. Step 5: Solve for x
    x = 67,993,912,397.76/306,008.60
  6. Step 6: Final answer
    x = 222,196.08

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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.