Home / 330,099.03-455,547.51-186,856.07

Finding the Fourth Proportional to 330,099.03, 455,547.51 and 186,856.07

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Solution

The fourth proportional to 330,099.03, 455,547.51 and 186,856.07 is: 257,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,099.03 : 455,547.51 = 186,856.07 : x
  2. Step 2: Convert to fraction form
    330,099.03/455,547.51 = 186,856.07/x
  3. Step 3: Cross multiply
    330,099.03x = 455,547.51 × 186,856.07
  4. Step 4: Simplify right side
    330,099.03x = 85,121,815,139.15
  5. Step 5: Solve for x
    x = 85,121,815,139.15/330,099.03
  6. Step 6: Final answer
    x = 257,867.51

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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.