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Finding the Fourth Proportional to 303,973.56, 455,987.07 and 79,332.21

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Solution

The fourth proportional to 303,973.56, 455,987.07 and 79,332.21 is: 119,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,973.56 : 455,987.07 = 79,332.21 : x
  2. Step 2: Convert to fraction form
    303,973.56/455,987.07 = 79,332.21/x
  3. Step 3: Cross multiply
    303,973.56x = 455,987.07 × 79,332.21
  4. Step 4: Simplify right side
    303,973.56x = 36,174,461,994.52
  5. Step 5: Solve for x
    x = 36,174,461,994.52/303,973.56
  6. Step 6: Final answer
    x = 119,005.29

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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.