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Finding the Fourth Proportional to 215,409.14, 297,264.48 and 119,938.40

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Solution

The fourth proportional to 215,409.14, 297,264.48 and 119,938.40 is: 165,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,409.14 : 297,264.48 = 119,938.40 : x
  2. Step 2: Convert to fraction form
    215,409.14/297,264.48 = 119,938.40/x
  3. Step 3: Cross multiply
    215,409.14x = 297,264.48 × 119,938.40
  4. Step 4: Simplify right side
    215,409.14x = 35,653,426,108.03
  5. Step 5: Solve for x
    x = 35,653,426,108.03/215,409.14
  6. Step 6: Final answer
    x = 165,514.92

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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.