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Finding the Fourth Proportional to 575,148.70, 863,051.10 and 220,417.30

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Solution

The fourth proportional to 575,148.70, 863,051.10 and 220,417.30 is: 330,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,148.70 : 863,051.10 = 220,417.30 : x
  2. Step 2: Convert to fraction form
    575,148.70/863,051.10 = 220,417.30/x
  3. Step 3: Cross multiply
    575,148.70x = 863,051.10 × 220,417.30
  4. Step 4: Simplify right side
    575,148.70x = 190,231,393,224.03
  5. Step 5: Solve for x
    x = 190,231,393,224.03/575,148.70
  6. Step 6: Final answer
    x = 330,751.67

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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.