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Finding the Fourth Proportional to 275,459.99, 413,411.43 and 142,379.24

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Solution

The fourth proportional to 275,459.99, 413,411.43 and 142,379.24 is: 213,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,459.99 : 413,411.43 = 142,379.24 : x
  2. Step 2: Convert to fraction form
    275,459.99/413,411.43 = 142,379.24/x
  3. Step 3: Cross multiply
    275,459.99x = 413,411.43 × 142,379.24
  4. Step 4: Simplify right side
    275,459.99x = 58,861,205,210.71
  5. Step 5: Solve for x
    x = 58,861,205,210.71/275,459.99
  6. Step 6: Final answer
    x = 213,683.32

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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.