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Finding the Fourth Proportional to 290,569.88, 401,017.30 and 175,911.16

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Solution

The fourth proportional to 290,569.88, 401,017.30 and 175,911.16 is: 242,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,569.88 : 401,017.30 = 175,911.16 : x
  2. Step 2: Convert to fraction form
    290,569.88/401,017.30 = 175,911.16/x
  3. Step 3: Cross multiply
    290,569.88x = 401,017.30 × 175,911.16
  4. Step 4: Simplify right side
    290,569.88x = 70,543,418,423.07
  5. Step 5: Solve for x
    x = 70,543,418,423.07/290,569.88
  6. Step 6: Final answer
    x = 242,776.09

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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.