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Finding the Fourth Proportional to 306,460.40, 460,121.18 and 156,808.04

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Solution

The fourth proportional to 306,460.40, 460,121.18 and 156,808.04 is: 235,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,460.40 : 460,121.18 = 156,808.04 : x
  2. Step 2: Convert to fraction form
    306,460.40/460,121.18 = 156,808.04/x
  3. Step 3: Cross multiply
    306,460.40x = 460,121.18 × 156,808.04
  4. Step 4: Simplify right side
    306,460.40x = 72,150,697,313.64
  5. Step 5: Solve for x
    x = 72,150,697,313.64/306,460.40
  6. Step 6: Final answer
    x = 235,432.37

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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.