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Finding the Fourth Proportional to 301,570.72, 452,260.21 and 99,120.13

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Solution

The fourth proportional to 301,570.72, 452,260.21 and 99,120.13 is: 148,648.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,570.72 : 452,260.21 = 99,120.13 : x
  2. Step 2: Convert to fraction form
    301,570.72/452,260.21 = 99,120.13/x
  3. Step 3: Cross multiply
    301,570.72x = 452,260.21 × 99,120.13
  4. Step 4: Simplify right side
    301,570.72x = 44,828,089,995.90
  5. Step 5: Solve for x
    x = 44,828,089,995.90/301,570.72
  6. Step 6: Final answer
    x = 148,648.68

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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.