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Finding the Fourth Proportional to 426,575.32, 639,897 and 146,095

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Solution

The fourth proportional to 426,575.32, 639,897 and 146,095 is: 219,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,575.32 : 639,897 = 146,095 : x
  2. Step 2: Convert to fraction form
    426,575.32/639,897 = 146,095/x
  3. Step 3: Cross multiply
    426,575.32x = 639,897 × 146,095
  4. Step 4: Simplify right side
    426,575.32x = 93,485,752,215
  5. Step 5: Solve for x
    x = 93,485,752,215/426,575.32
  6. Step 6: Final answer
    x = 219,154.15

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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.