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Finding the Fourth Proportional to 216,888.09, 299,248.81 and 124,984.89

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Solution

The fourth proportional to 216,888.09, 299,248.81 and 124,984.89 is: 172,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,888.09 : 299,248.81 = 124,984.89 : x
  2. Step 2: Convert to fraction form
    216,888.09/299,248.81 = 124,984.89/x
  3. Step 3: Cross multiply
    216,888.09x = 299,248.81 × 124,984.89
  4. Step 4: Simplify right side
    216,888.09x = 37,401,579,600.48
  5. Step 5: Solve for x
    x = 37,401,579,600.48/216,888.09
  6. Step 6: Final answer
    x = 172,446.44

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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.