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Finding the Fourth Proportional to 479,250.40, 718,875.60 and 146,783.20

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Solution

The fourth proportional to 479,250.40, 718,875.60 and 146,783.20 is: 220,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,250.40 : 718,875.60 = 146,783.20 : x
  2. Step 2: Convert to fraction form
    479,250.40/718,875.60 = 146,783.20/x
  3. Step 3: Cross multiply
    479,250.40x = 718,875.60 × 146,783.20
  4. Step 4: Simplify right side
    479,250.40x = 105,518,860,969.92
  5. Step 5: Solve for x
    x = 105,518,860,969.92/479,250.40
  6. Step 6: Final answer
    x = 220,174.80

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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.