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Finding the Fourth Proportional to 292,305.69, 438,291.03 and 89,849.07

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Solution

The fourth proportional to 292,305.69, 438,291.03 and 89,849.07 is: 134,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,305.69 : 438,291.03 = 89,849.07 : x
  2. Step 2: Convert to fraction form
    292,305.69/438,291.03 = 89,849.07/x
  3. Step 3: Cross multiply
    292,305.69x = 438,291.03 × 89,849.07
  4. Step 4: Simplify right side
    292,305.69x = 39,380,041,434.84
  5. Step 5: Solve for x
    x = 39,380,041,434.84/292,305.69
  6. Step 6: Final answer
    x = 134,722.12

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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.