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Finding the Fourth Proportional to 518,677.32, 777,988.44 and 158,848.05

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Solution

The fourth proportional to 518,677.32, 777,988.44 and 158,848.05 is: 238,263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,677.32 : 777,988.44 = 158,848.05 : x
  2. Step 2: Convert to fraction form
    518,677.32/777,988.44 = 158,848.05/x
  3. Step 3: Cross multiply
    518,677.32x = 777,988.44 × 158,848.05
  4. Step 4: Simplify right side
    518,677.32x = 123,581,946,616.54
  5. Step 5: Solve for x
    x = 123,581,946,616.54/518,677.32
  6. Step 6: Final answer
    x = 238,263.64

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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.