Home / 268,149.20-401,967.80-99,624.40

Finding the Fourth Proportional to 268,149.20, 401,967.80 and 99,624.40

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Solution

The fourth proportional to 268,149.20, 401,967.80 and 99,624.40 is: 149,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,149.20 : 401,967.80 = 99,624.40 : x
  2. Step 2: Convert to fraction form
    268,149.20/401,967.80 = 99,624.40/x
  3. Step 3: Cross multiply
    268,149.20x = 401,967.80 × 99,624.40
  4. Step 4: Simplify right side
    268,149.20x = 40,045,800,894.32
  5. Step 5: Solve for x
    x = 40,045,800,894.32/268,149.20
  6. Step 6: Final answer
    x = 149,341.49

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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.