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Finding the Fourth Proportional to 389,802.61, 584,702.82 and 152,979.67

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Solution

The fourth proportional to 389,802.61, 584,702.82 and 152,979.67 is: 229,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,802.61 : 584,702.82 = 152,979.67 : x
  2. Step 2: Convert to fraction form
    389,802.61/584,702.82 = 152,979.67/x
  3. Step 3: Cross multiply
    389,802.61x = 584,702.82 × 152,979.67
  4. Step 4: Simplify right side
    389,802.61x = 89,447,644,451.67
  5. Step 5: Solve for x
    x = 89,447,644,451.67/389,802.61
  6. Step 6: Final answer
    x = 229,469.08

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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.