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Finding the Fourth Proportional to 356,989.08, 491,698.96 and 266,054.16

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Solution

The fourth proportional to 356,989.08, 491,698.96 and 266,054.16 is: 366,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,989.08 : 491,698.96 = 266,054.16 : x
  2. Step 2: Convert to fraction form
    356,989.08/491,698.96 = 266,054.16/x
  3. Step 3: Cross multiply
    356,989.08x = 491,698.96 × 266,054.16
  4. Step 4: Simplify right side
    356,989.08x = 130,818,553,775.67
  5. Step 5: Solve for x
    x = 130,818,553,775.67/356,989.08
  6. Step 6: Final answer
    x = 366,449.74

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1.5x scale

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.