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Finding the Fourth Proportional to 286,521.20, 429,191.16 and 167,832.71

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Solution

The fourth proportional to 286,521.20, 429,191.16 and 167,832.71 is: 251,403.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,521.20 : 429,191.16 = 167,832.71 : x
  2. Step 2: Convert to fraction form
    286,521.20/429,191.16 = 167,832.71/x
  3. Step 3: Cross multiply
    286,521.20x = 429,191.16 × 167,832.71
  4. Step 4: Simplify right side
    286,521.20x = 72,032,315,490.84
  5. Step 5: Solve for x
    x = 72,032,315,490.84/286,521.20
  6. Step 6: Final answer
    x = 251,403.09

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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.