Home / 289,518.17-399,525.41-160,451.15

Finding the Fourth Proportional to 289,518.17, 399,525.41 and 160,451.15

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Solution

The fourth proportional to 289,518.17, 399,525.41 and 160,451.15 is: 221,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,518.17 : 399,525.41 = 160,451.15 : x
  2. Step 2: Convert to fraction form
    289,518.17/399,525.41 = 160,451.15/x
  3. Step 3: Cross multiply
    289,518.17x = 399,525.41 × 160,451.15
  4. Step 4: Simplify right side
    289,518.17x = 64,104,309,892.22
  5. Step 5: Solve for x
    x = 64,104,309,892.22/289,518.17
  6. Step 6: Final answer
    x = 221,417.23

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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.