Home / 281,780.20-423,045.60-163,536.40

Finding the Fourth Proportional to 281,780.20, 423,045.60 and 163,536.40

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Solution

The fourth proportional to 281,780.20, 423,045.60 and 163,536.40 is: 245,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,780.20 : 423,045.60 = 163,536.40 : x
  2. Step 2: Convert to fraction form
    281,780.20/423,045.60 = 163,536.40/x
  3. Step 3: Cross multiply
    281,780.20x = 423,045.60 × 163,536.40
  4. Step 4: Simplify right side
    281,780.20x = 69,183,354,459.84
  5. Step 5: Solve for x
    x = 69,183,354,459.84/281,780.20
  6. Step 6: Final answer
    x = 245,522.41

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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.