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Finding the Fourth Proportional to 215,679.49, 297,602.71 and 125,017.76

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Solution

The fourth proportional to 215,679.49, 297,602.71 and 125,017.76 is: 172,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,679.49 : 297,602.71 = 125,017.76 : x
  2. Step 2: Convert to fraction form
    215,679.49/297,602.71 = 125,017.76/x
  3. Step 3: Cross multiply
    215,679.49x = 297,602.71 × 125,017.76
  4. Step 4: Simplify right side
    215,679.49x = 37,205,624,605.59
  5. Step 5: Solve for x
    x = 37,205,624,605.59/215,679.49
  6. Step 6: Final answer
    x = 172,504.23

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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.