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Finding the Fourth Proportional to 335,140.80, 469,819.20 and 335,140.80

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Solution

The fourth proportional to 335,140.80, 469,819.20 and 335,140.80 is: 469,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,140.80 : 469,819.20 = 335,140.80 : x
  2. Step 2: Convert to fraction form
    335,140.80/469,819.20 = 335,140.80/x
  3. Step 3: Cross multiply
    335,140.80x = 469,819.20 × 335,140.80
  4. Step 4: Simplify right side
    335,140.80x = 157,455,582,543.36
  5. Step 5: Solve for x
    x = 157,455,582,543.36/335,140.80
  6. Step 6: Final answer
    x = 469,819.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.