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Finding the Fourth Proportional to 539,585.40, 808,730.10 and 223,879.80

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Solution

The fourth proportional to 539,585.40, 808,730.10 and 223,879.80 is: 335,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,585.40 : 808,730.10 = 223,879.80 : x
  2. Step 2: Convert to fraction form
    539,585.40/808,730.10 = 223,879.80/x
  3. Step 3: Cross multiply
    539,585.40x = 808,730.10 × 223,879.80
  4. Step 4: Simplify right side
    539,585.40x = 181,058,333,041.98
  5. Step 5: Solve for x
    x = 181,058,333,041.98/539,585.40
  6. Step 6: Final answer
    x = 335,550.84

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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.