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Finding the Fourth Proportional to 279,148.68, 418,897.98 and 146,135.34

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Solution

The fourth proportional to 279,148.68, 418,897.98 and 146,135.34 is: 219,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,148.68 : 418,897.98 = 146,135.34 : x
  2. Step 2: Convert to fraction form
    279,148.68/418,897.98 = 146,135.34/x
  3. Step 3: Cross multiply
    279,148.68x = 418,897.98 × 146,135.34
  4. Step 4: Simplify right side
    279,148.68x = 61,215,798,732.61
  5. Step 5: Solve for x
    x = 61,215,798,732.61/279,148.68
  6. Step 6: Final answer
    x = 219,294.60

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1.5x scale

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.