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Finding the Fourth Proportional to 217,714.29, 300,393.15 and 127,018.50

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Solution

The fourth proportional to 217,714.29, 300,393.15 and 127,018.50 is: 175,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,714.29 : 300,393.15 = 127,018.50 : x
  2. Step 2: Convert to fraction form
    217,714.29/300,393.15 = 127,018.50/x
  3. Step 3: Cross multiply
    217,714.29x = 300,393.15 × 127,018.50
  4. Step 4: Simplify right side
    217,714.29x = 38,155,487,323.28
  5. Step 5: Solve for x
    x = 38,155,487,323.28/217,714.29
  6. Step 6: Final answer
    x = 175,254.86

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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.