Home / 211,381.04-291,705.76-115,885.69

Finding the Fourth Proportional to 211,381.04, 291,705.76 and 115,885.69

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Solution

The fourth proportional to 211,381.04, 291,705.76 and 115,885.69 is: 159,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,381.04 : 291,705.76 = 115,885.69 : x
  2. Step 2: Convert to fraction form
    211,381.04/291,705.76 = 115,885.69/x
  3. Step 3: Cross multiply
    211,381.04x = 291,705.76 × 115,885.69
  4. Step 4: Simplify right side
    211,381.04x = 33,804,523,274.57
  5. Step 5: Solve for x
    x = 33,804,523,274.57/211,381.04
  6. Step 6: Final answer
    x = 159,922.21

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Double scale
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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.