Home / 211,222.16-291,475.42-120,574.52

Finding the Fourth Proportional to 211,222.16, 291,475.42 and 120,574.52

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Solution

The fourth proportional to 211,222.16, 291,475.42 and 120,574.52 is: 166,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,222.16 : 291,475.42 = 120,574.52 : x
  2. Step 2: Convert to fraction form
    211,222.16/291,475.42 = 120,574.52/x
  3. Step 3: Cross multiply
    211,222.16x = 291,475.42 × 120,574.52
  4. Step 4: Simplify right side
    211,222.16x = 35,144,509,285.55
  5. Step 5: Solve for x
    x = 35,144,509,285.55/211,222.16
  6. Step 6: Final answer
    x = 166,386.47

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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.