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Finding the Fourth Proportional to 218,742.70, 328,114.05 and 183,750.70

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Solution

The fourth proportional to 218,742.70, 328,114.05 and 183,750.70 is: 275,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,742.70 : 328,114.05 = 183,750.70 : x
  2. Step 2: Convert to fraction form
    218,742.70/328,114.05 = 183,750.70/x
  3. Step 3: Cross multiply
    218,742.70x = 328,114.05 × 183,750.70
  4. Step 4: Simplify right side
    218,742.70x = 60,291,186,367.34
  5. Step 5: Solve for x
    x = 60,291,186,367.34/218,742.70
  6. Step 6: Final answer
    x = 275,626.05

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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.