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Finding the Fourth Proportional to 326,984.40, 490,492.80 and 169,520.40

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Solution

The fourth proportional to 326,984.40, 490,492.80 and 169,520.40 is: 254,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,984.40 : 490,492.80 = 169,520.40 : x
  2. Step 2: Convert to fraction form
    326,984.40/490,492.80 = 169,520.40/x
  3. Step 3: Cross multiply
    326,984.40x = 490,492.80 × 169,520.40
  4. Step 4: Simplify right side
    326,984.40x = 83,148,535,653.12
  5. Step 5: Solve for x
    x = 83,148,535,653.12/326,984.40
  6. Step 6: Final answer
    x = 254,289.00

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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.