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Finding the Fourth Proportional to 220,284.50, 304,018.53 and 130,860.50

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Solution

The fourth proportional to 220,284.50, 304,018.53 and 130,860.50 is: 180,602.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,284.50 : 304,018.53 = 130,860.50 : x
  2. Step 2: Convert to fraction form
    220,284.50/304,018.53 = 130,860.50/x
  3. Step 3: Cross multiply
    220,284.50x = 304,018.53 × 130,860.50
  4. Step 4: Simplify right side
    220,284.50x = 39,784,016,845.07
  5. Step 5: Solve for x
    x = 39,784,016,845.07/220,284.50
  6. Step 6: Final answer
    x = 180,602.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.