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Finding the Fourth Proportional to 260,385.01, 390,222.80 and 159,218.49

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Solution

The fourth proportional to 260,385.01, 390,222.80 and 159,218.49 is: 238,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,385.01 : 390,222.80 = 159,218.49 : x
  2. Step 2: Convert to fraction form
    260,385.01/390,222.80 = 159,218.49/x
  3. Step 3: Cross multiply
    260,385.01x = 390,222.80 × 159,218.49
  4. Step 4: Simplify right side
    260,385.01x = 62,130,683,028.46
  5. Step 5: Solve for x
    x = 62,130,683,028.46/260,385.01
  6. Step 6: Final answer
    x = 238,610.83

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1.5x scale

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.