Home / 261,931.82-361,477.77-154,506.38

Finding the Fourth Proportional to 261,931.82, 361,477.77 and 154,506.38

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Solution

The fourth proportional to 261,931.82, 361,477.77 and 154,506.38 is: 213,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931.82 : 361,477.77 = 154,506.38 : x
  2. Step 2: Convert to fraction form
    261,931.82/361,477.77 = 154,506.38/x
  3. Step 3: Cross multiply
    261,931.82x = 361,477.77 × 154,506.38
  4. Step 4: Simplify right side
    261,931.82x = 55,850,621,693.17
  5. Step 5: Solve for x
    x = 55,850,621,693.17/261,931.82
  6. Step 6: Final answer
    x = 213,225.80

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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.