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Finding the Fourth Proportional to 539,686.40, 809,626.80 and 224,175.20

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Solution

The fourth proportional to 539,686.40, 809,626.80 and 224,175.20 is: 336,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,686.40 : 809,626.80 = 224,175.20 : x
  2. Step 2: Convert to fraction form
    539,686.40/809,626.80 = 224,175.20/x
  3. Step 3: Cross multiply
    539,686.40x = 809,626.80 × 224,175.20
  4. Step 4: Simplify right side
    539,686.40x = 181,498,249,815.36
  5. Step 5: Solve for x
    x = 181,498,249,815.36/539,686.40
  6. Step 6: Final answer
    x = 336,303.17

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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.