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Finding the Fourth Proportional to 469,890.19, 648,449.04 and 255,030.22

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Solution

The fourth proportional to 469,890.19, 648,449.04 and 255,030.22 is: 351,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,890.19 : 648,449.04 = 255,030.22 : x
  2. Step 2: Convert to fraction form
    469,890.19/648,449.04 = 255,030.22/x
  3. Step 3: Cross multiply
    469,890.19x = 648,449.04 × 255,030.22
  4. Step 4: Simplify right side
    469,890.19x = 165,374,101,329.99
  5. Step 5: Solve for x
    x = 165,374,101,329.99/469,890.19
  6. Step 6: Final answer
    x = 351,942.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.