Home / 216,945.03-299,414.04-130,908.45

Finding the Fourth Proportional to 216,945.03, 299,414.04 and 130,908.45

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Solution

The fourth proportional to 216,945.03, 299,414.04 and 130,908.45 is: 180,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,945.03 : 299,414.04 = 130,908.45 : x
  2. Step 2: Convert to fraction form
    216,945.03/299,414.04 = 130,908.45/x
  3. Step 3: Cross multiply
    216,945.03x = 299,414.04 × 130,908.45
  4. Step 4: Simplify right side
    216,945.03x = 39,195,827,884.64
  5. Step 5: Solve for x
    x = 39,195,827,884.64/216,945.03
  6. Step 6: Final answer
    x = 180,671.70

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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.