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Finding the Fourth Proportional to 219,720.95, 303,223.07 and 124,221.95

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Solution

The fourth proportional to 219,720.95, 303,223.07 and 124,221.95 is: 171,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,720.95 : 303,223.07 = 124,221.95 : x
  2. Step 2: Convert to fraction form
    219,720.95/303,223.07 = 124,221.95/x
  3. Step 3: Cross multiply
    219,720.95x = 303,223.07 × 124,221.95
  4. Step 4: Simplify right side
    219,720.95x = 37,666,961,040.39
  5. Step 5: Solve for x
    x = 37,666,961,040.39/219,720.95
  6. Step 6: Final answer
    x = 171,430.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.