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Finding the Fourth Proportional to 288,020.10, 432,030.15 and 163,604.10

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Solution

The fourth proportional to 288,020.10, 432,030.15 and 163,604.10 is: 245,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,020.10 : 432,030.15 = 163,604.10 : x
  2. Step 2: Convert to fraction form
    288,020.10/432,030.15 = 163,604.10/x
  3. Step 3: Cross multiply
    288,020.10x = 432,030.15 × 163,604.10
  4. Step 4: Simplify right side
    288,020.10x = 70,681,903,863.62
  5. Step 5: Solve for x
    x = 70,681,903,863.62/288,020.10
  6. Step 6: Final answer
    x = 245,406.15

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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.