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Finding the Fourth Proportional to 536,742.09, 805,211.55 and 221,026.77

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Solution

The fourth proportional to 536,742.09, 805,211.55 and 221,026.77 is: 331,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,742.09 : 805,211.55 = 221,026.77 : x
  2. Step 2: Convert to fraction form
    536,742.09/805,211.55 = 221,026.77/x
  3. Step 3: Cross multiply
    536,742.09x = 805,211.55 × 221,026.77
  4. Step 4: Simplify right side
    536,742.09x = 177,973,308,063.19
  5. Step 5: Solve for x
    x = 177,973,308,063.19/536,742.09
  6. Step 6: Final answer
    x = 331,580.68

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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.