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Finding the Fourth Proportional to 215,506.79, 297,399.77 and 124,880.25

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Solution

The fourth proportional to 215,506.79, 297,399.77 and 124,880.25 is: 172,334.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,506.79 : 297,399.77 = 124,880.25 : x
  2. Step 2: Convert to fraction form
    215,506.79/297,399.77 = 124,880.25/x
  3. Step 3: Cross multiply
    215,506.79x = 297,399.77 × 124,880.25
  4. Step 4: Simplify right side
    215,506.79x = 37,139,357,003.14
  5. Step 5: Solve for x
    x = 37,139,357,003.14/215,506.79
  6. Step 6: Final answer
    x = 172,334.98

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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.