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Finding the Fourth Proportional to 165,001.20, 247,210.20 and 154,503.60

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Solution

The fourth proportional to 165,001.20, 247,210.20 and 154,503.60 is: 231,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,001.20 : 247,210.20 = 154,503.60 : x
  2. Step 2: Convert to fraction form
    165,001.20/247,210.20 = 154,503.60/x
  3. Step 3: Cross multiply
    165,001.20x = 247,210.20 × 154,503.60
  4. Step 4: Simplify right side
    165,001.20x = 38,194,865,856.72
  5. Step 5: Solve for x
    x = 38,194,865,856.72/165,001.20
  6. Step 6: Final answer
    x = 231,482.35

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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.