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Finding the Fourth Proportional to 401,199.61, 553,712.18 and 248,287.07

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Solution

The fourth proportional to 401,199.61, 553,712.18 and 248,287.07 is: 342,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,199.61 : 553,712.18 = 248,287.07 : x
  2. Step 2: Convert to fraction form
    401,199.61/553,712.18 = 248,287.07/x
  3. Step 3: Cross multiply
    401,199.61x = 553,712.18 × 248,287.07
  4. Step 4: Simplify right side
    401,199.61x = 137,479,575,636.67
  5. Step 5: Solve for x
    x = 137,479,575,636.67/401,199.61
  6. Step 6: Final answer
    x = 342,671.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.