Home / 389,701.10-584,430.15-153,116.30

Finding the Fourth Proportional to 389,701.10, 584,430.15 and 153,116.30

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Solution

The fourth proportional to 389,701.10, 584,430.15 and 153,116.30 is: 229,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,701.10 : 584,430.15 = 153,116.30 : x
  2. Step 2: Convert to fraction form
    389,701.10/584,430.15 = 153,116.30/x
  3. Step 3: Cross multiply
    389,701.10x = 584,430.15 × 153,116.30
  4. Step 4: Simplify right side
    389,701.10x = 89,485,782,176.45
  5. Step 5: Solve for x
    x = 89,485,782,176.45/389,701.10
  6. Step 6: Final answer
    x = 229,626.71

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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.