Home / 281,782.20-423,048.60-163,538.40

Finding the Fourth Proportional to 281,782.20, 423,048.60 and 163,538.40

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Solution

The fourth proportional to 281,782.20, 423,048.60 and 163,538.40 is: 245,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,782.20 : 423,048.60 = 163,538.40 : x
  2. Step 2: Convert to fraction form
    281,782.20/423,048.60 = 163,538.40/x
  3. Step 3: Cross multiply
    281,782.20x = 423,048.60 × 163,538.40
  4. Step 4: Simplify right side
    281,782.20x = 69,184,691,166.24
  5. Step 5: Solve for x
    x = 69,184,691,166.24/281,782.20
  6. Step 6: Final answer
    x = 245,525.41

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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.