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Finding the Fourth Proportional to 434,873.80, 651,504.30 and 247,328.20

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Solution

The fourth proportional to 434,873.80, 651,504.30 and 247,328.20 is: 370,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,873.80 : 651,504.30 = 247,328.20 : x
  2. Step 2: Convert to fraction form
    434,873.80/651,504.30 = 247,328.20/x
  3. Step 3: Cross multiply
    434,873.80x = 651,504.30 × 247,328.20
  4. Step 4: Simplify right side
    434,873.80x = 161,135,385,811.26
  5. Step 5: Solve for x
    x = 161,135,385,811.26/434,873.80
  6. Step 6: Final answer
    x = 370,533.67

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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.