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Finding the Fourth Proportional to 98,313.40, 147,450.30 and 28,173.88

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Solution

The fourth proportional to 98,313.40, 147,450.30 and 28,173.88 is: 42,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,313.40 : 147,450.30 = 28,173.88 : x
  2. Step 2: Convert to fraction form
    98,313.40/147,450.30 = 28,173.88/x
  3. Step 3: Cross multiply
    98,313.40x = 147,450.30 × 28,173.88
  4. Step 4: Simplify right side
    98,313.40x = 4,154,247,058.16
  5. Step 5: Solve for x
    x = 4,154,247,058.16/98,313.40
  6. Step 6: Final answer
    x = 42,255.15

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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.