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Finding the Fourth Proportional to 147,209.70, 220,814.55 and 36,401.70

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Solution

The fourth proportional to 147,209.70, 220,814.55 and 36,401.70 is: 54,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,209.70 : 220,814.55 = 36,401.70 : x
  2. Step 2: Convert to fraction form
    147,209.70/220,814.55 = 36,401.70/x
  3. Step 3: Cross multiply
    147,209.70x = 220,814.55 × 36,401.70
  4. Step 4: Simplify right side
    147,209.70x = 8,038,025,004.74
  5. Step 5: Solve for x
    x = 8,038,025,004.74/147,209.70
  6. Step 6: Final answer
    x = 54,602.55

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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.