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Finding the Fourth Proportional to 321,130.56, 443,167.54 and 175,950.20

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Solution

The fourth proportional to 321,130.56, 443,167.54 and 175,950.20 is: 242,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,130.56 : 443,167.54 = 175,950.20 : x
  2. Step 2: Convert to fraction form
    321,130.56/443,167.54 = 175,950.20/x
  3. Step 3: Cross multiply
    321,130.56x = 443,167.54 × 175,950.20
  4. Step 4: Simplify right side
    321,130.56x = 77,975,417,296.51
  5. Step 5: Solve for x
    x = 77,975,417,296.51/321,130.56
  6. Step 6: Final answer
    x = 242,815.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.