Home / 268,929.41-403,300.08-79,339.45

Finding the Fourth Proportional to 268,929.41, 403,300.08 and 79,339.45

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Solution

The fourth proportional to 268,929.41, 403,300.08 and 79,339.45 is: 118,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,929.41 : 403,300.08 = 79,339.45 : x
  2. Step 2: Convert to fraction form
    268,929.41/403,300.08 = 79,339.45/x
  3. Step 3: Cross multiply
    268,929.41x = 403,300.08 × 79,339.45
  4. Step 4: Simplify right side
    268,929.41x = 31,997,604,515.66
  5. Step 5: Solve for x
    x = 31,997,604,515.66/268,929.41
  6. Step 6: Final answer
    x = 118,981.43

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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.