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Finding the Fourth Proportional to 307,303.62, 424,038.69 and 171,304.62

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Solution

The fourth proportional to 307,303.62, 424,038.69 and 171,304.62 is: 236,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,303.62 : 424,038.69 = 171,304.62 : x
  2. Step 2: Convert to fraction form
    307,303.62/424,038.69 = 171,304.62/x
  3. Step 3: Cross multiply
    307,303.62x = 424,038.69 × 171,304.62
  4. Step 4: Simplify right side
    307,303.62x = 72,639,786,655.75
  5. Step 5: Solve for x
    x = 72,639,786,655.75/307,303.62
  6. Step 6: Final answer
    x = 236,377.91

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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.