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Finding the Fourth Proportional to 215,503.86, 297,402.09 and 118,714.74

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Solution

The fourth proportional to 215,503.86, 297,402.09 and 118,714.74 is: 163,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,503.86 : 297,402.09 = 118,714.74 : x
  2. Step 2: Convert to fraction form
    215,503.86/297,402.09 = 118,714.74/x
  3. Step 3: Cross multiply
    215,503.86x = 297,402.09 × 118,714.74
  4. Step 4: Simplify right side
    215,503.86x = 35,306,011,789.81
  5. Step 5: Solve for x
    x = 35,306,011,789.81/215,503.86
  6. Step 6: Final answer
    x = 163,830.07

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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.