Home / 302,579.40-453,869.10-80,963.40

Finding the Fourth Proportional to 302,579.40, 453,869.10 and 80,963.40

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Solution

The fourth proportional to 302,579.40, 453,869.10 and 80,963.40 is: 121,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,579.40 : 453,869.10 = 80,963.40 : x
  2. Step 2: Convert to fraction form
    302,579.40/453,869.10 = 80,963.40/x
  3. Step 3: Cross multiply
    302,579.40x = 453,869.10 × 80,963.40
  4. Step 4: Simplify right side
    302,579.40x = 36,746,785,490.94
  5. Step 5: Solve for x
    x = 36,746,785,490.94/302,579.40
  6. Step 6: Final answer
    x = 121,445.10

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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.