Home / 257,444.20-386,166.30-178,712.20

Finding the Fourth Proportional to 257,444.20, 386,166.30 and 178,712.20

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Solution

The fourth proportional to 257,444.20, 386,166.30 and 178,712.20 is: 268,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,444.20 : 386,166.30 = 178,712.20 : x
  2. Step 2: Convert to fraction form
    257,444.20/386,166.30 = 178,712.20/x
  3. Step 3: Cross multiply
    257,444.20x = 386,166.30 × 178,712.20
  4. Step 4: Simplify right side
    257,444.20x = 69,012,629,038.86
  5. Step 5: Solve for x
    x = 69,012,629,038.86/257,444.20
  6. Step 6: Final answer
    x = 268,068.30

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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.