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Finding the Fourth Proportional to 301,752.40, 421,900.40 and 301,752.40

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Solution

The fourth proportional to 301,752.40, 421,900.40 and 301,752.40 is: 421,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,752.40 : 421,900.40 = 301,752.40 : x
  2. Step 2: Convert to fraction form
    301,752.40/421,900.40 = 301,752.40/x
  3. Step 3: Cross multiply
    301,752.40x = 421,900.40 × 301,752.40
  4. Step 4: Simplify right side
    301,752.40x = 127,309,458,260.96
  5. Step 5: Solve for x
    x = 127,309,458,260.96/301,752.40
  6. Step 6: Final answer
    x = 421,900.40

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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.