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Finding the Fourth Proportional to 318,664.68, 477,308.95 and 149,932.16

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Solution

The fourth proportional to 318,664.68, 477,308.95 and 149,932.16 is: 224,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,664.68 : 477,308.95 = 149,932.16 : x
  2. Step 2: Convert to fraction form
    318,664.68/477,308.95 = 149,932.16/x
  3. Step 3: Cross multiply
    318,664.68x = 477,308.95 × 149,932.16
  4. Step 4: Simplify right side
    318,664.68x = 71,563,964,417.60
  5. Step 5: Solve for x
    x = 71,563,964,417.60/318,664.68
  6. Step 6: Final answer
    x = 224,574.51

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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.