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Finding the Fourth Proportional to 302,395.50, 452,485.98 and 286,173.63

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Solution

The fourth proportional to 302,395.50, 452,485.98 and 286,173.63 is: 428,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,395.50 : 452,485.98 = 286,173.63 : x
  2. Step 2: Convert to fraction form
    302,395.50/452,485.98 = 286,173.63/x
  3. Step 3: Cross multiply
    302,395.50x = 452,485.98 × 286,173.63
  4. Step 4: Simplify right side
    302,395.50x = 129,489,555,420.71
  5. Step 5: Solve for x
    x = 129,489,555,420.71/302,395.50
  6. Step 6: Final answer
    x = 428,212.57

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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.