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Finding the Fourth Proportional to 298,987.58, 448,482.99 and 77,371.58

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Solution

The fourth proportional to 298,987.58, 448,482.99 and 77,371.58 is: 116,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,987.58 : 448,482.99 = 77,371.58 : x
  2. Step 2: Convert to fraction form
    298,987.58/448,482.99 = 77,371.58/x
  3. Step 3: Cross multiply
    298,987.58x = 448,482.99 × 77,371.58
  4. Step 4: Simplify right side
    298,987.58x = 34,699,837,539.42
  5. Step 5: Solve for x
    x = 34,699,837,539.42/298,987.58
  6. Step 6: Final answer
    x = 116,057.79

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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.