Home / 282,108.15-389,309.72-154,784.66

Finding the Fourth Proportional to 282,108.15, 389,309.72 and 154,784.66

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Solution

The fourth proportional to 282,108.15, 389,309.72 and 154,784.66 is: 213,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,108.15 : 389,309.72 = 154,784.66 : x
  2. Step 2: Convert to fraction form
    282,108.15/389,309.72 = 154,784.66/x
  3. Step 3: Cross multiply
    282,108.15x = 389,309.72 × 154,784.66
  4. Step 4: Simplify right side
    282,108.15x = 60,259,169,924.42
  5. Step 5: Solve for x
    x = 60,259,169,924.42/282,108.15
  6. Step 6: Final answer
    x = 213,603.08

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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.