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Finding the Fourth Proportional to 349,862.20, 524,015.70 and 303,206.20

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Solution

The fourth proportional to 349,862.20, 524,015.70 and 303,206.20 is: 454,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,862.20 : 524,015.70 = 303,206.20 : x
  2. Step 2: Convert to fraction form
    349,862.20/524,015.70 = 303,206.20/x
  3. Step 3: Cross multiply
    349,862.20x = 524,015.70 × 303,206.20
  4. Step 4: Simplify right side
    349,862.20x = 158,884,809,137.34
  5. Step 5: Solve for x
    x = 158,884,809,137.34/349,862.20
  6. Step 6: Final answer
    x = 454,135.40

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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.