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Finding the Fourth Proportional to 225,348.87, 310,985.12 and 123,372.63

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Solution

The fourth proportional to 225,348.87, 310,985.12 and 123,372.63 is: 170,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,348.87 : 310,985.12 = 123,372.63 : x
  2. Step 2: Convert to fraction form
    225,348.87/310,985.12 = 123,372.63/x
  3. Step 3: Cross multiply
    225,348.87x = 310,985.12 × 123,372.63
  4. Step 4: Simplify right side
    225,348.87x = 38,367,051,528.40
  5. Step 5: Solve for x
    x = 38,367,051,528.40/225,348.87
  6. Step 6: Final answer
    x = 170,256.24

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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.