Home / 505,267.09-757,242.47-205,397.38

Finding the Fourth Proportional to 505,267.09, 757,242.47 and 205,397.38

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Solution

The fourth proportional to 505,267.09, 757,242.47 and 205,397.38 is: 307,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,267.09 : 757,242.47 = 205,397.38 : x
  2. Step 2: Convert to fraction form
    505,267.09/757,242.47 = 205,397.38/x
  3. Step 3: Cross multiply
    505,267.09x = 757,242.47 × 205,397.38
  4. Step 4: Simplify right side
    505,267.09x = 155,535,618,335.74
  5. Step 5: Solve for x
    x = 155,535,618,335.74/505,267.09
  6. Step 6: Final answer
    x = 307,828.52

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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.