Home / 315,050.64-434,780.79-179,090.28

Finding the Fourth Proportional to 315,050.64, 434,780.79 and 179,090.28

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Solution

The fourth proportional to 315,050.64, 434,780.79 and 179,090.28 is: 247,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,050.64 : 434,780.79 = 179,090.28 : x
  2. Step 2: Convert to fraction form
    315,050.64/434,780.79 = 179,090.28/x
  3. Step 3: Cross multiply
    315,050.64x = 434,780.79 × 179,090.28
  4. Step 4: Simplify right side
    315,050.64x = 77,865,013,419.72
  5. Step 5: Solve for x
    x = 77,865,013,419.72/315,050.64
  6. Step 6: Final answer
    x = 247,150.79

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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.