Home / 426,318.98-638,923.12-173,303.92

Finding the Fourth Proportional to 426,318.98, 638,923.12 and 173,303.92

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Solution

The fourth proportional to 426,318.98, 638,923.12 and 173,303.92 is: 259,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,318.98 : 638,923.12 = 173,303.92 : x
  2. Step 2: Convert to fraction form
    426,318.98/638,923.12 = 173,303.92/x
  3. Step 3: Cross multiply
    426,318.98x = 638,923.12 × 173,303.92
  4. Step 4: Simplify right side
    426,318.98x = 110,727,881,640.03
  5. Step 5: Solve for x
    x = 110,727,881,640.03/426,318.98
  6. Step 6: Final answer
    x = 259,730.13

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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.