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Finding the Fourth Proportional to 270,900.90, 406,205.55 and 112,950.90

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Solution

The fourth proportional to 270,900.90, 406,205.55 and 112,950.90 is: 169,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,900.90 : 406,205.55 = 112,950.90 : x
  2. Step 2: Convert to fraction form
    270,900.90/406,205.55 = 112,950.90/x
  3. Step 3: Cross multiply
    270,900.90x = 406,205.55 × 112,950.90
  4. Step 4: Simplify right side
    270,900.90x = 45,881,282,457.50
  5. Step 5: Solve for x
    x = 45,881,282,457.50/270,900.90
  6. Step 6: Final answer
    x = 169,365.56

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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.