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Finding the Fourth Proportional to 286,519.20, 429,188.16 and 167,830.71

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Solution

The fourth proportional to 286,519.20, 429,188.16 and 167,830.71 is: 251,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,519.20 : 429,188.16 = 167,830.71 : x
  2. Step 2: Convert to fraction form
    286,519.20/429,188.16 = 167,830.71/x
  3. Step 3: Cross multiply
    286,519.20x = 429,188.16 × 167,830.71
  4. Step 4: Simplify right side
    286,519.20x = 72,030,953,616.39
  5. Step 5: Solve for x
    x = 72,030,953,616.39/286,519.20
  6. Step 6: Final answer
    x = 251,400.09

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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.