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Finding the Fourth Proportional to 607,135.20, 909,973.80 and 251,966.40

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Solution

The fourth proportional to 607,135.20, 909,973.80 and 251,966.40 is: 377,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,135.20 : 909,973.80 = 251,966.40 : x
  2. Step 2: Convert to fraction form
    607,135.20/909,973.80 = 251,966.40/x
  3. Step 3: Cross multiply
    607,135.20x = 909,973.80 × 251,966.40
  4. Step 4: Simplify right side
    607,135.20x = 229,282,822,480.32
  5. Step 5: Solve for x
    x = 229,282,822,480.32/607,135.20
  6. Step 6: Final answer
    x = 377,647.06

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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.