Home / 285,931.90-428,897.85-197,458.30

Finding the Fourth Proportional to 285,931.90, 428,897.85 and 197,458.30

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Solution

The fourth proportional to 285,931.90, 428,897.85 and 197,458.30 is: 296,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,931.90 : 428,897.85 = 197,458.30 : x
  2. Step 2: Convert to fraction form
    285,931.90/428,897.85 = 197,458.30/x
  3. Step 3: Cross multiply
    285,931.90x = 428,897.85 × 197,458.30
  4. Step 4: Simplify right side
    285,931.90x = 84,689,440,334.66
  5. Step 5: Solve for x
    x = 84,689,440,334.66/285,931.90
  6. Step 6: Final answer
    x = 296,187.45

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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.