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Finding the Fourth Proportional to 288,015.10, 432,022.65 and 163,599.10

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Solution

The fourth proportional to 288,015.10, 432,022.65 and 163,599.10 is: 245,398.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,015.10 : 432,022.65 = 163,599.10 : x
  2. Step 2: Convert to fraction form
    288,015.10/432,022.65 = 163,599.10/x
  3. Step 3: Cross multiply
    288,015.10x = 432,022.65 × 163,599.10
  4. Step 4: Simplify right side
    288,015.10x = 70,678,516,719.62
  5. Step 5: Solve for x
    x = 70,678,516,719.62/288,015.10
  6. Step 6: Final answer
    x = 245,398.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.