Home / 211,329.48-291,664.56-130,782.96

Finding the Fourth Proportional to 211,329.48, 291,664.56 and 130,782.96

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Solution

The fourth proportional to 211,329.48, 291,664.56 and 130,782.96 is: 180,498.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,329.48 : 291,664.56 = 130,782.96 : x
  2. Step 2: Convert to fraction form
    211,329.48/291,664.56 = 130,782.96/x
  3. Step 3: Cross multiply
    211,329.48x = 291,664.56 × 130,782.96
  4. Step 4: Simplify right side
    211,329.48x = 38,144,754,483.90
  5. Step 5: Solve for x
    x = 38,144,754,483.90/211,329.48
  6. Step 6: Final answer
    x = 180,498.97

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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.