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Finding the Fourth Proportional to 290,127.94, 435,104.43 and 112,595.38

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Solution

The fourth proportional to 290,127.94, 435,104.43 and 112,595.38 is: 168,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,127.94 : 435,104.43 = 112,595.38 : x
  2. Step 2: Convert to fraction form
    290,127.94/435,104.43 = 112,595.38/x
  3. Step 3: Cross multiply
    290,127.94x = 435,104.43 × 112,595.38
  4. Step 4: Simplify right side
    290,127.94x = 48,990,748,635.53
  5. Step 5: Solve for x
    x = 48,990,748,635.53/290,127.94
  6. Step 6: Final answer
    x = 168,859.12

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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.