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Finding the Fourth Proportional to 295,060.79, 440,911.42 and 221,551.47

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Solution

The fourth proportional to 295,060.79, 440,911.42 and 221,551.47 is: 331,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,060.79 : 440,911.42 = 221,551.47 : x
  2. Step 2: Convert to fraction form
    295,060.79/440,911.42 = 221,551.47/x
  3. Step 3: Cross multiply
    295,060.79x = 440,911.42 × 221,551.47
  4. Step 4: Simplify right side
    295,060.79x = 97,684,572,686.91
  5. Step 5: Solve for x
    x = 97,684,572,686.91/295,060.79
  6. Step 6: Final answer
    x = 331,065.92

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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.