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Finding the Fourth Proportional to 328,959.60, 492,783.30 and 229,232.40

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Solution

The fourth proportional to 328,959.60, 492,783.30 and 229,232.40 is: 343,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,959.60 : 492,783.30 = 229,232.40 : x
  2. Step 2: Convert to fraction form
    328,959.60/492,783.30 = 229,232.40/x
  3. Step 3: Cross multiply
    328,959.60x = 492,783.30 × 229,232.40
  4. Step 4: Simplify right side
    328,959.60x = 112,961,898,538.92
  5. Step 5: Solve for x
    x = 112,961,898,538.92/328,959.60
  6. Step 6: Final answer
    x = 343,391.40

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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.