Home / 251,946.80-377,920.20-74,459.60

Finding the Fourth Proportional to 251,946.80, 377,920.20 and 74,459.60

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Solution

The fourth proportional to 251,946.80, 377,920.20 and 74,459.60 is: 111,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,946.80 : 377,920.20 = 74,459.60 : x
  2. Step 2: Convert to fraction form
    251,946.80/377,920.20 = 74,459.60/x
  3. Step 3: Cross multiply
    251,946.80x = 377,920.20 × 74,459.60
  4. Step 4: Simplify right side
    251,946.80x = 28,139,786,923.92
  5. Step 5: Solve for x
    x = 28,139,786,923.92/251,946.80
  6. Step 6: Final answer
    x = 111,689.40

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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.