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Finding the Fourth Proportional to 356,952.51, 492,589.88 and 203,988.96

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Solution

The fourth proportional to 356,952.51, 492,589.88 and 203,988.96 is: 281,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,952.51 : 492,589.88 = 203,988.96 : x
  2. Step 2: Convert to fraction form
    356,952.51/492,589.88 = 203,988.96/x
  3. Step 3: Cross multiply
    356,952.51x = 492,589.88 × 203,988.96
  4. Step 4: Simplify right side
    356,952.51x = 100,482,896,307.78
  5. Step 5: Solve for x
    x = 100,482,896,307.78/356,952.51
  6. Step 6: Final answer
    x = 281,502.14

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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.