Home / 211,515.56-291,890.69-130,927.04

Finding the Fourth Proportional to 211,515.56, 291,890.69 and 130,927.04

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Solution

The fourth proportional to 211,515.56, 291,890.69 and 130,927.04 is: 180,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,515.56 : 291,890.69 = 130,927.04 : x
  2. Step 2: Convert to fraction form
    211,515.56/291,890.69 = 130,927.04/x
  3. Step 3: Cross multiply
    211,515.56x = 291,890.69 × 130,927.04
  4. Step 4: Simplify right side
    211,515.56x = 38,216,381,931.17
  5. Step 5: Solve for x
    x = 38,216,381,931.17/211,515.56
  6. Step 6: Final answer
    x = 180,678.82

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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.