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Finding the Fourth Proportional to 435,073.38, 652,583.75 and 258,702.77

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Solution

The fourth proportional to 435,073.38, 652,583.75 and 258,702.77 is: 388,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,073.38 : 652,583.75 = 258,702.77 : x
  2. Step 2: Convert to fraction form
    435,073.38/652,583.75 = 258,702.77/x
  3. Step 3: Cross multiply
    435,073.38x = 652,583.75 × 258,702.77
  4. Step 4: Simplify right side
    435,073.38x = 168,825,219,225.56
  5. Step 5: Solve for x
    x = 168,825,219,225.56/435,073.38
  6. Step 6: Final answer
    x = 388,038.49

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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.