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Finding the Fourth Proportional to 666,345.30, 999,242.98 and 255,952.58

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Solution

The fourth proportional to 666,345.30, 999,242.98 and 255,952.58 is: 383,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,345.30 : 999,242.98 = 255,952.58 : x
  2. Step 2: Convert to fraction form
    666,345.30/999,242.98 = 255,952.58/x
  3. Step 3: Cross multiply
    666,345.30x = 999,242.98 × 255,952.58
  4. Step 4: Simplify right side
    666,345.30x = 255,758,818,777.89
  5. Step 5: Solve for x
    x = 255,758,818,777.89/666,345.30
  6. Step 6: Final answer
    x = 383,823.25

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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.