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Finding the Fourth Proportional to 216,929.91, 299,327.68 and 136,300.34

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Solution

The fourth proportional to 216,929.91, 299,327.68 and 136,300.34 is: 188,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,929.91 : 299,327.68 = 136,300.34 : x
  2. Step 2: Convert to fraction form
    216,929.91/299,327.68 = 136,300.34/x
  3. Step 3: Cross multiply
    216,929.91x = 299,327.68 × 136,300.34
  4. Step 4: Simplify right side
    216,929.91x = 40,798,462,718.02
  5. Step 5: Solve for x
    x = 40,798,462,718.02/216,929.91
  6. Step 6: Final answer
    x = 188,072.10

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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.