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Finding the Fourth Proportional to 268,210.70, 402,316.05 and 143,794.70

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Solution

The fourth proportional to 268,210.70, 402,316.05 and 143,794.70 is: 215,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,210.70 : 402,316.05 = 143,794.70 : x
  2. Step 2: Convert to fraction form
    268,210.70/402,316.05 = 143,794.70/x
  3. Step 3: Cross multiply
    268,210.70x = 402,316.05 × 143,794.70
  4. Step 4: Simplify right side
    268,210.70x = 57,850,915,714.94
  5. Step 5: Solve for x
    x = 57,850,915,714.94/268,210.70
  6. Step 6: Final answer
    x = 215,692.05

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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.