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Finding the Fourth Proportional to 306,670.35, 459,622.80 and 156,970.20

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Solution

The fourth proportional to 306,670.35, 459,622.80 and 156,970.20 is: 235,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,670.35 : 459,622.80 = 156,970.20 : x
  2. Step 2: Convert to fraction form
    306,670.35/459,622.80 = 156,970.20/x
  3. Step 3: Cross multiply
    306,670.35x = 459,622.80 × 156,970.20
  4. Step 4: Simplify right side
    306,670.35x = 72,147,082,840.56
  5. Step 5: Solve for x
    x = 72,147,082,840.56/306,670.35
  6. Step 6: Final answer
    x = 235,259.40

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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.