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Finding the Fourth Proportional to 273,967.47, 378,073.89 and 153,108.72

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Solution

The fourth proportional to 273,967.47, 378,073.89 and 153,108.72 is: 211,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,967.47 : 378,073.89 = 153,108.72 : x
  2. Step 2: Convert to fraction form
    273,967.47/378,073.89 = 153,108.72/x
  3. Step 3: Cross multiply
    273,967.47x = 378,073.89 × 153,108.72
  4. Step 4: Simplify right side
    273,967.47x = 57,886,409,363.32
  5. Step 5: Solve for x
    x = 57,886,409,363.32/273,967.47
  6. Step 6: Final answer
    x = 211,289.35

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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.