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Finding the Fourth Proportional to 207,003.70, 310,505.55 and 146,869.30

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Solution

The fourth proportional to 207,003.70, 310,505.55 and 146,869.30 is: 220,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,003.70 : 310,505.55 = 146,869.30 : x
  2. Step 2: Convert to fraction form
    207,003.70/310,505.55 = 146,869.30/x
  3. Step 3: Cross multiply
    207,003.70x = 310,505.55 × 146,869.30
  4. Step 4: Simplify right side
    207,003.70x = 45,603,732,774.62
  5. Step 5: Solve for x
    x = 45,603,732,774.62/207,003.70
  6. Step 6: Final answer
    x = 220,303.95

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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.