Home / 291,222.08-401,820-163,851.20

Finding the Fourth Proportional to 291,222.08, 401,820 and 163,851.20

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Solution

The fourth proportional to 291,222.08, 401,820 and 163,851.20 is: 226,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,222.08 : 401,820 = 163,851.20 : x
  2. Step 2: Convert to fraction form
    291,222.08/401,820 = 163,851.20/x
  3. Step 3: Cross multiply
    291,222.08x = 401,820 × 163,851.20
  4. Step 4: Simplify right side
    291,222.08x = 65,838,689,184.00
  5. Step 5: Solve for x
    x = 65,838,689,184.00/291,222.08
  6. Step 6: Final answer
    x = 226,077.26

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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.