Home / 430,002.60-644,837.94-141,745.02

Finding the Fourth Proportional to 430,002.60, 644,837.94 and 141,745.02

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Solution

The fourth proportional to 430,002.60, 644,837.94 and 141,745.02 is: 212,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,002.60 : 644,837.94 = 141,745.02 : x
  2. Step 2: Convert to fraction form
    430,002.60/644,837.94 = 141,745.02/x
  3. Step 3: Cross multiply
    430,002.60x = 644,837.94 × 141,745.02
  4. Step 4: Simplify right side
    430,002.60x = 91,402,566,702.06
  5. Step 5: Solve for x
    x = 91,402,566,702.06/430,002.60
  6. Step 6: Final answer
    x = 212,562.82

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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.