Home / 330,116.40-455,562-186,904.08

Finding the Fourth Proportional to 330,116.40, 455,562 and 186,904.08

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Solution

The fourth proportional to 330,116.40, 455,562 and 186,904.08 is: 257,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,116.40 : 455,562 = 186,904.08 : x
  2. Step 2: Convert to fraction form
    330,116.40/455,562 = 186,904.08/x
  3. Step 3: Cross multiply
    330,116.40x = 455,562 × 186,904.08
  4. Step 4: Simplify right side
    330,116.40x = 85,146,396,492.96
  5. Step 5: Solve for x
    x = 85,146,396,492.96/330,116.40
  6. Step 6: Final answer
    x = 257,928.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.