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Finding the Fourth Proportional to 304,065.36, 455,904.86 and 266,700.47

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Solution

The fourth proportional to 304,065.36, 455,904.86 and 266,700.47 is: 399,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,065.36 : 455,904.86 = 266,700.47 : x
  2. Step 2: Convert to fraction form
    304,065.36/455,904.86 = 266,700.47/x
  3. Step 3: Cross multiply
    304,065.36x = 455,904.86 × 266,700.47
  4. Step 4: Simplify right side
    304,065.36x = 121,590,036,824.26
  5. Step 5: Solve for x
    x = 121,590,036,824.26/304,065.36
  6. Step 6: Final answer
    x = 399,881.25

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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.