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Finding the Fourth Proportional to 539,158.77, 808,312 and 269,148.33

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Solution

The fourth proportional to 539,158.77, 808,312 and 269,148.33 is: 403,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,158.77 : 808,312 = 269,148.33 : x
  2. Step 2: Convert to fraction form
    539,158.77/808,312 = 269,148.33/x
  3. Step 3: Cross multiply
    539,158.77x = 808,312 × 269,148.33
  4. Step 4: Simplify right side
    539,158.77x = 217,555,824,918.96
  5. Step 5: Solve for x
    x = 217,555,824,918.96/539,158.77
  6. Step 6: Final answer
    x = 403,509.76

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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.