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Finding the Fourth Proportional to 288,623.98, 432,752.58 and 253,156.51

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Solution

The fourth proportional to 288,623.98, 432,752.58 and 253,156.51 is: 379,573.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,623.98 : 432,752.58 = 253,156.51 : x
  2. Step 2: Convert to fraction form
    288,623.98/432,752.58 = 253,156.51/x
  3. Step 3: Cross multiply
    288,623.98x = 432,752.58 × 253,156.51
  4. Step 4: Simplify right side
    288,623.98x = 109,554,135,316.36
  5. Step 5: Solve for x
    x = 109,554,135,316.36/288,623.98
  6. Step 6: Final answer
    x = 379,573.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.