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Finding the Fourth Proportional to 248,603.47, 372,655.50 and 79,999.87

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Solution

The fourth proportional to 248,603.47, 372,655.50 and 79,999.87 is: 119,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,603.47 : 372,655.50 = 79,999.87 : x
  2. Step 2: Convert to fraction form
    248,603.47/372,655.50 = 79,999.87/x
  3. Step 3: Cross multiply
    248,603.47x = 372,655.50 × 79,999.87
  4. Step 4: Simplify right side
    248,603.47x = 29,812,391,554.79
  5. Step 5: Solve for x
    x = 29,812,391,554.79/248,603.47
  6. Step 6: Final answer
    x = 119,919.45

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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.