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Finding the Fourth Proportional to 260,010, 390,015 and 63,018

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Solution

The fourth proportional to 260,010, 390,015 and 63,018 is: 94,527

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,010 : 390,015 = 63,018 : x
  2. Step 2: Convert to fraction form
    260,010/390,015 = 63,018/x
  3. Step 3: Cross multiply
    260,010x = 390,015 × 63,018
  4. Step 4: Simplify right side
    260,010x = 24,577,965,270
  5. Step 5: Solve for x
    x = 24,577,965,270/260,010
  6. Step 6: Final answer
    x = 94,527

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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.