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Finding the Fourth Proportional to 247,310.70, 370,966.05 and 153,998.70

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Solution

The fourth proportional to 247,310.70, 370,966.05 and 153,998.70 is: 230,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,310.70 : 370,966.05 = 153,998.70 : x
  2. Step 2: Convert to fraction form
    247,310.70/370,966.05 = 153,998.70/x
  3. Step 3: Cross multiply
    247,310.70x = 370,966.05 × 153,998.70
  4. Step 4: Simplify right side
    247,310.70x = 57,128,289,444.14
  5. Step 5: Solve for x
    x = 57,128,289,444.14/247,310.70
  6. Step 6: Final answer
    x = 230,998.05

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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.