Home / 272,404.45-408,518.70-99,271.51

Finding the Fourth Proportional to 272,404.45, 408,518.70 and 99,271.51

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Solution

The fourth proportional to 272,404.45, 408,518.70 and 99,271.51 is: 148,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,404.45 : 408,518.70 = 99,271.51 : x
  2. Step 2: Convert to fraction form
    272,404.45/408,518.70 = 99,271.51/x
  3. Step 3: Cross multiply
    272,404.45x = 408,518.70 × 99,271.51
  4. Step 4: Simplify right side
    272,404.45x = 40,554,268,212.24
  5. Step 5: Solve for x
    x = 40,554,268,212.24/272,404.45
  6. Step 6: Final answer
    x = 148,875.20

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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.