Home / 407,830.13-611,875.20-171,109.25

Finding the Fourth Proportional to 407,830.13, 611,875.20 and 171,109.25

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Solution

The fourth proportional to 407,830.13, 611,875.20 and 171,109.25 is: 256,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,830.13 : 611,875.20 = 171,109.25 : x
  2. Step 2: Convert to fraction form
    407,830.13/611,875.20 = 171,109.25/x
  3. Step 3: Cross multiply
    407,830.13x = 611,875.20 × 171,109.25
  4. Step 4: Simplify right side
    407,830.13x = 104,697,503,506.22
  5. Step 5: Solve for x
    x = 104,697,503,506.22/407,830.13
  6. Step 6: Final answer
    x = 256,718.42

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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.