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Finding the Fourth Proportional to 270,110.61, 405,166.22 and 70,430.83

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Solution

The fourth proportional to 270,110.61, 405,166.22 and 70,430.83 is: 105,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,110.61 : 405,166.22 = 70,430.83 : x
  2. Step 2: Convert to fraction form
    270,110.61/405,166.22 = 70,430.83/x
  3. Step 3: Cross multiply
    270,110.61x = 405,166.22 × 70,430.83
  4. Step 4: Simplify right side
    270,110.61x = 28,536,193,162.56
  5. Step 5: Solve for x
    x = 28,536,193,162.56/270,110.61
  6. Step 6: Final answer
    x = 105,646.32

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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.