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Finding the Fourth Proportional to 308,303.61, 425,450.03 and 172,337.82

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Solution

The fourth proportional to 308,303.61, 425,450.03 and 172,337.82 is: 237,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,303.61 : 425,450.03 = 172,337.82 : x
  2. Step 2: Convert to fraction form
    308,303.61/425,450.03 = 172,337.82/x
  3. Step 3: Cross multiply
    308,303.61x = 425,450.03 × 172,337.82
  4. Step 4: Simplify right side
    308,303.61x = 73,321,130,689.13
  5. Step 5: Solve for x
    x = 73,321,130,689.13/308,303.61
  6. Step 6: Final answer
    x = 237,821.19

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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.