Home / 211,339.76-291,678.70-130,793.22

Finding the Fourth Proportional to 211,339.76, 291,678.70 and 130,793.22

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Solution

The fourth proportional to 211,339.76, 291,678.70 and 130,793.22 is: 180,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,339.76 : 291,678.70 = 130,793.22 : x
  2. Step 2: Convert to fraction form
    211,339.76/291,678.70 = 130,793.22/x
  3. Step 3: Cross multiply
    211,339.76x = 291,678.70 × 130,793.22
  4. Step 4: Simplify right side
    211,339.76x = 38,149,596,378.41
  5. Step 5: Solve for x
    x = 38,149,596,378.41/211,339.76
  6. Step 6: Final answer
    x = 180,513.11

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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.