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Finding the Fourth Proportional to 443,399.66, 611,922.40 and 252,413

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Solution

The fourth proportional to 443,399.66, 611,922.40 and 252,413 is: 348,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,399.66 : 611,922.40 = 252,413 : x
  2. Step 2: Convert to fraction form
    443,399.66/611,922.40 = 252,413/x
  3. Step 3: Cross multiply
    443,399.66x = 611,922.40 × 252,413
  4. Step 4: Simplify right side
    443,399.66x = 154,457,168,751.20
  5. Step 5: Solve for x
    x = 154,457,168,751.20/443,399.66
  6. Step 6: Final answer
    x = 348,347.51

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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.