Home / 302,579.20-453,868.80-80,963.20

Finding the Fourth Proportional to 302,579.20, 453,868.80 and 80,963.20

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Solution

The fourth proportional to 302,579.20, 453,868.80 and 80,963.20 is: 121,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,579.20 : 453,868.80 = 80,963.20 : x
  2. Step 2: Convert to fraction form
    302,579.20/453,868.80 = 80,963.20/x
  3. Step 3: Cross multiply
    302,579.20x = 453,868.80 × 80,963.20
  4. Step 4: Simplify right side
    302,579.20x = 36,746,670,428.16
  5. Step 5: Solve for x
    x = 36,746,670,428.16/302,579.20
  6. Step 6: Final answer
    x = 121,444.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.