Home / 291,945.42-402,884.46-157,809.42

Finding the Fourth Proportional to 291,945.42, 402,884.46 and 157,809.42

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Solution

The fourth proportional to 291,945.42, 402,884.46 and 157,809.42 is: 217,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,945.42 : 402,884.46 = 157,809.42 : x
  2. Step 2: Convert to fraction form
    291,945.42/402,884.46 = 157,809.42/x
  3. Step 3: Cross multiply
    291,945.42x = 402,884.46 × 157,809.42
  4. Step 4: Simplify right side
    291,945.42x = 63,578,962,959.61
  5. Step 5: Solve for x
    x = 63,578,962,959.61/291,945.42
  6. Step 6: Final answer
    x = 217,776.88

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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.