Home / 257,981.40-386,453.70-174,000.60

Finding the Fourth Proportional to 257,981.40, 386,453.70 and 174,000.60

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Solution

The fourth proportional to 257,981.40, 386,453.70 and 174,000.60 is: 260,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,981.40 : 386,453.70 = 174,000.60 : x
  2. Step 2: Convert to fraction form
    257,981.40/386,453.70 = 174,000.60/x
  3. Step 3: Cross multiply
    257,981.40x = 386,453.70 × 174,000.60
  4. Step 4: Simplify right side
    257,981.40x = 67,243,175,672.22
  5. Step 5: Solve for x
    x = 67,243,175,672.22/257,981.40
  6. Step 6: Final answer
    x = 260,651.25

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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.