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Finding the Fourth Proportional to 375,897.08, 518,705.88 and 212,545.58

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Solution

The fourth proportional to 375,897.08, 518,705.88 and 212,545.58 is: 293,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,897.08 : 518,705.88 = 212,545.58 : x
  2. Step 2: Convert to fraction form
    375,897.08/518,705.88 = 212,545.58/x
  3. Step 3: Cross multiply
    375,897.08x = 518,705.88 × 212,545.58
  4. Step 4: Simplify right side
    375,897.08x = 110,248,642,114.01
  5. Step 5: Solve for x
    x = 110,248,642,114.01/375,897.08
  6. Step 6: Final answer
    x = 293,294.76

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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.