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Finding the Fourth Proportional to 375,111, 562,666.50 and 112,455

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Solution

The fourth proportional to 375,111, 562,666.50 and 112,455 is: 168,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,111 : 562,666.50 = 112,455 : x
  2. Step 2: Convert to fraction form
    375,111/562,666.50 = 112,455/x
  3. Step 3: Cross multiply
    375,111x = 562,666.50 × 112,455
  4. Step 4: Simplify right side
    375,111x = 63,274,661,257.50
  5. Step 5: Solve for x
    x = 63,274,661,257.50/375,111
  6. Step 6: Final answer
    x = 168,682.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.