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Finding the Fourth Proportional to 302,315.20, 453,472.80 and 77,675.20

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Solution

The fourth proportional to 302,315.20, 453,472.80 and 77,675.20 is: 116,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,315.20 : 453,472.80 = 77,675.20 : x
  2. Step 2: Convert to fraction form
    302,315.20/453,472.80 = 77,675.20/x
  3. Step 3: Cross multiply
    302,315.20x = 453,472.80 × 77,675.20
  4. Step 4: Simplify right side
    302,315.20x = 35,223,590,434.56
  5. Step 5: Solve for x
    x = 35,223,590,434.56/302,315.20
  6. Step 6: Final answer
    x = 116,512.80

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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.