Home / 328,029.20-492,043.80-117,688.40

Finding the Fourth Proportional to 328,029.20, 492,043.80 and 117,688.40

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Solution

The fourth proportional to 328,029.20, 492,043.80 and 117,688.40 is: 176,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,029.20 : 492,043.80 = 117,688.40 : x
  2. Step 2: Convert to fraction form
    328,029.20/492,043.80 = 117,688.40/x
  3. Step 3: Cross multiply
    328,029.20x = 492,043.80 × 117,688.40
  4. Step 4: Simplify right side
    328,029.20x = 57,907,847,551.92
  5. Step 5: Solve for x
    x = 57,907,847,551.92/328,029.20
  6. Step 6: Final answer
    x = 176,532.60

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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.