Home / 443,430.77-664,973.60-143,838.90

Finding the Fourth Proportional to 443,430.77, 664,973.60 and 143,838.90

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Solution

The fourth proportional to 443,430.77, 664,973.60 and 143,838.90 is: 215,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,430.77 : 664,973.60 = 143,838.90 : x
  2. Step 2: Convert to fraction form
    443,430.77/664,973.60 = 143,838.90/x
  3. Step 3: Cross multiply
    443,430.77x = 664,973.60 × 143,838.90
  4. Step 4: Simplify right side
    443,430.77x = 95,649,070,433.85
  5. Step 5: Solve for x
    x = 95,649,070,433.85/443,430.77
  6. Step 6: Final answer
    x = 215,702.38

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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.