Home / 331,931.89-497,897.07-142,269.28

Finding the Fourth Proportional to 331,931.89, 497,897.07 and 142,269.28

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Solution

The fourth proportional to 331,931.89, 497,897.07 and 142,269.28 is: 213,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,931.89 : 497,897.07 = 142,269.28 : x
  2. Step 2: Convert to fraction form
    331,931.89/497,897.07 = 142,269.28/x
  3. Step 3: Cross multiply
    331,931.89x = 497,897.07 × 142,269.28
  4. Step 4: Simplify right side
    331,931.89x = 70,835,455,173.52
  5. Step 5: Solve for x
    x = 70,835,455,173.52/331,931.89
  6. Step 6: Final answer
    x = 213,403.58

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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.