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Finding the Fourth Proportional to 318,275.68, 477,315.90 and 105,004.24

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Solution

The fourth proportional to 318,275.68, 477,315.90 and 105,004.24 is: 157,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,275.68 : 477,315.90 = 105,004.24 : x
  2. Step 2: Convert to fraction form
    318,275.68/477,315.90 = 105,004.24/x
  3. Step 3: Cross multiply
    318,275.68x = 477,315.90 × 105,004.24
  4. Step 4: Simplify right side
    318,275.68x = 50,120,193,319.42
  5. Step 5: Solve for x
    x = 50,120,193,319.42/318,275.68
  6. Step 6: Final answer
    x = 157,474.15

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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.