Home / 209,921.53-289,680.77-119,264.91

Finding the Fourth Proportional to 209,921.53, 289,680.77 and 119,264.91

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Solution

The fourth proportional to 209,921.53, 289,680.77 and 119,264.91 is: 164,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,921.53 : 289,680.77 = 119,264.91 : x
  2. Step 2: Convert to fraction form
    209,921.53/289,680.77 = 119,264.91/x
  3. Step 3: Cross multiply
    209,921.53x = 289,680.77 × 119,264.91
  4. Step 4: Simplify right side
    209,921.53x = 34,548,750,962.78
  5. Step 5: Solve for x
    x = 34,548,750,962.78/209,921.53
  6. Step 6: Final answer
    x = 164,579.36

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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.