Home / 291,216.10-401,811.70-163,845.22

Finding the Fourth Proportional to 291,216.10, 401,811.70 and 163,845.22

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Solution

The fourth proportional to 291,216.10, 401,811.70 and 163,845.22 is: 226,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,216.10 : 401,811.70 = 163,845.22 : x
  2. Step 2: Convert to fraction form
    291,216.10/401,811.70 = 163,845.22/x
  3. Step 3: Cross multiply
    291,216.10x = 401,811.70 × 163,845.22
  4. Step 4: Simplify right side
    291,216.10x = 65,834,926,385.07
  5. Step 5: Solve for x
    x = 65,834,926,385.07/291,216.10
  6. Step 6: Final answer
    x = 226,068.98

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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.