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Finding the Fourth Proportional to 329,870.40, 494,740.80 and 108,254.40

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Solution

The fourth proportional to 329,870.40, 494,740.80 and 108,254.40 is: 162,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,870.40 : 494,740.80 = 108,254.40 : x
  2. Step 2: Convert to fraction form
    329,870.40/494,740.80 = 108,254.40/x
  3. Step 3: Cross multiply
    329,870.40x = 494,740.80 × 108,254.40
  4. Step 4: Simplify right side
    329,870.40x = 53,557,868,459.52
  5. Step 5: Solve for x
    x = 53,557,868,459.52/329,870.40
  6. Step 6: Final answer
    x = 162,360.33

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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.