Home / 210,276.14-290,179.08-129,671.42

Finding the Fourth Proportional to 210,276.14, 290,179.08 and 129,671.42

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Solution

The fourth proportional to 210,276.14, 290,179.08 and 129,671.42 is: 178,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,276.14 : 290,179.08 = 129,671.42 : x
  2. Step 2: Convert to fraction form
    210,276.14/290,179.08 = 129,671.42/x
  3. Step 3: Cross multiply
    210,276.14x = 290,179.08 × 129,671.42
  4. Step 4: Simplify right side
    210,276.14x = 37,627,931,907.00
  5. Step 5: Solve for x
    x = 37,627,931,907.00/210,276.14
  6. Step 6: Final answer
    x = 178,945.33

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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.