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Finding the Fourth Proportional to 314,779.80, 472,169.70 and 302,532.60

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Solution

The fourth proportional to 314,779.80, 472,169.70 and 302,532.60 is: 453,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,779.80 : 472,169.70 = 302,532.60 : x
  2. Step 2: Convert to fraction form
    314,779.80/472,169.70 = 302,532.60/x
  3. Step 3: Cross multiply
    314,779.80x = 472,169.70 × 302,532.60
  4. Step 4: Simplify right side
    314,779.80x = 142,846,726,982.22
  5. Step 5: Solve for x
    x = 142,846,726,982.22/314,779.80
  6. Step 6: Final answer
    x = 453,798.90

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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.