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Finding the Fourth Proportional to 299,054.40, 448,660.80 and 130,502.40

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Solution

The fourth proportional to 299,054.40, 448,660.80 and 130,502.40 is: 195,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,054.40 : 448,660.80 = 130,502.40 : x
  2. Step 2: Convert to fraction form
    299,054.40/448,660.80 = 130,502.40/x
  3. Step 3: Cross multiply
    299,054.40x = 448,660.80 × 130,502.40
  4. Step 4: Simplify right side
    299,054.40x = 58,551,311,185.92
  5. Step 5: Solve for x
    x = 58,551,311,185.92/299,054.40
  6. Step 6: Final answer
    x = 195,788.16

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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.