Home / 257,001.40-385,521.60-79,526.35

Finding the Fourth Proportional to 257,001.40, 385,521.60 and 79,526.35

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Solution

The fourth proportional to 257,001.40, 385,521.60 and 79,526.35 is: 119,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,001.40 : 385,521.60 = 79,526.35 : x
  2. Step 2: Convert to fraction form
    257,001.40/385,521.60 = 79,526.35/x
  3. Step 3: Cross multiply
    257,001.40x = 385,521.60 × 79,526.35
  4. Step 4: Simplify right side
    257,001.40x = 30,659,125,694.16
  5. Step 5: Solve for x
    x = 30,659,125,694.16/257,001.40
  6. Step 6: Final answer
    x = 119,295.56

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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.