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Finding the Fourth Proportional to 487,511.03, 731,598.71 and 171,967.95

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Solution

The fourth proportional to 487,511.03, 731,598.71 and 171,967.95 is: 258,069.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,511.03 : 731,598.71 = 171,967.95 : x
  2. Step 2: Convert to fraction form
    487,511.03/731,598.71 = 171,967.95/x
  3. Step 3: Cross multiply
    487,511.03x = 731,598.71 × 171,967.95
  4. Step 4: Simplify right side
    487,511.03x = 125,811,529,521.51
  5. Step 5: Solve for x
    x = 125,811,529,521.51/487,511.03
  6. Step 6: Final answer
    x = 258,069.09

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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.