Home / 426,136.92-638,830.95-173,629.74

Finding the Fourth Proportional to 426,136.92, 638,830.95 and 173,629.74

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Solution

The fourth proportional to 426,136.92, 638,830.95 and 173,629.74 is: 260,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,136.92 : 638,830.95 = 173,629.74 : x
  2. Step 2: Convert to fraction form
    426,136.92/638,830.95 = 173,629.74/x
  3. Step 3: Cross multiply
    426,136.92x = 638,830.95 × 173,629.74
  4. Step 4: Simplify right side
    426,136.92x = 110,920,051,752.45
  5. Step 5: Solve for x
    x = 110,920,051,752.45/426,136.92
  6. Step 6: Final answer
    x = 260,292.05

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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.