Home / 386,918.25-534,159.05-270,810.42

Finding the Fourth Proportional to 386,918.25, 534,159.05 and 270,810.42

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Solution

The fourth proportional to 386,918.25, 534,159.05 and 270,810.42 is: 373,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,918.25 : 534,159.05 = 270,810.42 : x
  2. Step 2: Convert to fraction form
    386,918.25/534,159.05 = 270,810.42/x
  3. Step 3: Cross multiply
    386,918.25x = 534,159.05 × 270,810.42
  4. Step 4: Simplify right side
    386,918.25x = 144,655,835,323.25
  5. Step 5: Solve for x
    x = 144,655,835,323.25/386,918.25
  6. Step 6: Final answer
    x = 373,866.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.