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Finding the Fourth Proportional to 238,776.35, 358,087.29 and 78,816.35

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Solution

The fourth proportional to 238,776.35, 358,087.29 and 78,816.35 is: 118,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,776.35 : 358,087.29 = 78,816.35 : x
  2. Step 2: Convert to fraction form
    238,776.35/358,087.29 = 78,816.35/x
  3. Step 3: Cross multiply
    238,776.35x = 358,087.29 × 78,816.35
  4. Step 4: Simplify right side
    238,776.35x = 28,223,131,388.76
  5. Step 5: Solve for x
    x = 28,223,131,388.76/238,776.35
  6. Step 6: Final answer
    x = 118,199.03

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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.