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Finding the Fourth Proportional to 450,903, 676,458.18 and 155,415

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Solution

The fourth proportional to 450,903, 676,458.18 and 155,415 is: 233,158.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,903 : 676,458.18 = 155,415 : x
  2. Step 2: Convert to fraction form
    450,903/676,458.18 = 155,415/x
  3. Step 3: Cross multiply
    450,903x = 676,458.18 × 155,415
  4. Step 4: Simplify right side
    450,903x = 105,131,748,044.70
  5. Step 5: Solve for x
    x = 105,131,748,044.70/450,903
  6. Step 6: Final answer
    x = 233,158.24

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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.