Home / 330,022.10-455,352.43-186,782.14

Finding the Fourth Proportional to 330,022.10, 455,352.43 and 186,782.14

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Solution

The fourth proportional to 330,022.10, 455,352.43 and 186,782.14 is: 257,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.10 : 455,352.43 = 186,782.14 : x
  2. Step 2: Convert to fraction form
    330,022.10/455,352.43 = 186,782.14/x
  3. Step 3: Cross multiply
    330,022.10x = 455,352.43 × 186,782.14
  4. Step 4: Simplify right side
    330,022.10x = 85,051,701,329.60
  5. Step 5: Solve for x
    x = 85,051,701,329.60/330,022.10
  6. Step 6: Final answer
    x = 257,715.17

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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.