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Finding the Fourth Proportional to 271,807.45, 375,281.92 and 169,878.72

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Solution

The fourth proportional to 271,807.45, 375,281.92 and 169,878.72 is: 234,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,807.45 : 375,281.92 = 169,878.72 : x
  2. Step 2: Convert to fraction form
    271,807.45/375,281.92 = 169,878.72/x
  3. Step 3: Cross multiply
    271,807.45x = 375,281.92 × 169,878.72
  4. Step 4: Simplify right side
    271,807.45x = 63,752,412,208.74
  5. Step 5: Solve for x
    x = 63,752,412,208.74/271,807.45
  6. Step 6: Final answer
    x = 234,549.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.