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Finding the Fourth Proportional to 492,656.16, 679,865.20 and 266,301.66

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Solution

The fourth proportional to 492,656.16, 679,865.20 and 266,301.66 is: 367,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,656.16 : 679,865.20 = 266,301.66 : x
  2. Step 2: Convert to fraction form
    492,656.16/679,865.20 = 266,301.66/x
  3. Step 3: Cross multiply
    492,656.16x = 679,865.20 × 266,301.66
  4. Step 4: Simplify right side
    492,656.16x = 181,049,230,670.48
  5. Step 5: Solve for x
    x = 181,049,230,670.48/492,656.16
  6. Step 6: Final answer
    x = 367,496.13

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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.