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Finding the Fourth Proportional to 216,153.72, 298,354.86 and 125,530.20

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Solution

The fourth proportional to 216,153.72, 298,354.86 and 125,530.20 is: 173,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,153.72 : 298,354.86 = 125,530.20 : x
  2. Step 2: Convert to fraction form
    216,153.72/298,354.86 = 125,530.20/x
  3. Step 3: Cross multiply
    216,153.72x = 298,354.86 × 125,530.20
  4. Step 4: Simplify right side
    216,153.72x = 37,452,545,246.77
  5. Step 5: Solve for x
    x = 37,452,545,246.77/216,153.72
  6. Step 6: Final answer
    x = 173,268.10

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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.