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Finding the Fourth Proportional to 537,971.40, 807,063.42 and 158,898.72

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Solution

The fourth proportional to 537,971.40, 807,063.42 and 158,898.72 is: 238,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,971.40 : 807,063.42 = 158,898.72 : x
  2. Step 2: Convert to fraction form
    537,971.40/807,063.42 = 158,898.72/x
  3. Step 3: Cross multiply
    537,971.40x = 807,063.42 × 158,898.72
  4. Step 4: Simplify right side
    537,971.40x = 128,241,344,396.82
  5. Step 5: Solve for x
    x = 128,241,344,396.82/537,971.40
  6. Step 6: Final answer
    x = 238,379.48

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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.