Home / 211,061.20-291,264.48-115,573.76

Finding the Fourth Proportional to 211,061.20, 291,264.48 and 115,573.76

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Solution

The fourth proportional to 211,061.20, 291,264.48 and 115,573.76 is: 159,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,061.20 : 291,264.48 = 115,573.76 : x
  2. Step 2: Convert to fraction form
    211,061.20/291,264.48 = 115,573.76/x
  3. Step 3: Cross multiply
    211,061.20x = 291,264.48 × 115,573.76
  4. Step 4: Simplify right side
    211,061.20x = 33,662,531,108.04
  5. Step 5: Solve for x
    x = 33,662,531,108.04/211,061.20
  6. Step 6: Final answer
    x = 159,491.80

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1.5x scale

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.