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Finding the Fourth Proportional to 216,720.63, 299,106.20 and 124,822.25

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Solution

The fourth proportional to 216,720.63, 299,106.20 and 124,822.25 is: 172,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,720.63 : 299,106.20 = 124,822.25 : x
  2. Step 2: Convert to fraction form
    216,720.63/299,106.20 = 124,822.25/x
  3. Step 3: Cross multiply
    216,720.63x = 299,106.20 × 124,822.25
  4. Step 4: Simplify right side
    216,720.63x = 37,335,108,915.45
  5. Step 5: Solve for x
    x = 37,335,108,915.45/216,720.63
  6. Step 6: Final answer
    x = 172,272.98

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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.