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Finding the Fourth Proportional to 200,887.20, 301,330.80 and 51,127.20

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Solution

The fourth proportional to 200,887.20, 301,330.80 and 51,127.20 is: 76,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,887.20 : 301,330.80 = 51,127.20 : x
  2. Step 2: Convert to fraction form
    200,887.20/301,330.80 = 51,127.20/x
  3. Step 3: Cross multiply
    200,887.20x = 301,330.80 × 51,127.20
  4. Step 4: Simplify right side
    200,887.20x = 15,406,200,077.76
  5. Step 5: Solve for x
    x = 15,406,200,077.76/200,887.20
  6. Step 6: Final answer
    x = 76,690.80

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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.