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Finding the Fourth Proportional to 1,001.35, 1,502.13 and 307.99

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Solution

The fourth proportional to 1,001.35, 1,502.13 and 307.99 is: 462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.35 : 1,502.13 = 307.99 : x
  2. Step 2: Convert to fraction form
    1,001.35/1,502.13 = 307.99/x
  3. Step 3: Cross multiply
    1,001.35x = 1,502.13 × 307.99
  4. Step 4: Simplify right side
    1,001.35x = 462,633.51
  5. Step 5: Solve for x
    x = 462,633.51/1,001.35
  6. Step 6: Final answer
    x = 462.01

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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.