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Finding the Fourth Proportional to 301,995.42, 452,991.78 and 77,355.42

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Solution

The fourth proportional to 301,995.42, 452,991.78 and 77,355.42 is: 116,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,995.42 : 452,991.78 = 77,355.42 : x
  2. Step 2: Convert to fraction form
    301,995.42/452,991.78 = 77,355.42/x
  3. Step 3: Cross multiply
    301,995.42x = 452,991.78 × 77,355.42
  4. Step 4: Simplify right side
    301,995.42x = 35,041,369,398.45
  5. Step 5: Solve for x
    x = 35,041,369,398.45/301,995.42
  6. Step 6: Final answer
    x = 116,032.78

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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.