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Finding the Fourth Proportional to 169,758.72, 253,392 and 157,248

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Solution

The fourth proportional to 169,758.72, 253,392 and 157,248 is: 234,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,758.72 : 253,392 = 157,248 : x
  2. Step 2: Convert to fraction form
    169,758.72/253,392 = 157,248/x
  3. Step 3: Cross multiply
    169,758.72x = 253,392 × 157,248
  4. Step 4: Simplify right side
    169,758.72x = 39,845,385,216
  5. Step 5: Solve for x
    x = 39,845,385,216/169,758.72
  6. Step 6: Final answer
    x = 234,717.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.