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Finding the Fourth Proportional to 143,461.88, 215,178.96 and 43,622.93

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Solution

The fourth proportional to 143,461.88, 215,178.96 and 43,622.93 is: 65,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,461.88 : 215,178.96 = 43,622.93 : x
  2. Step 2: Convert to fraction form
    143,461.88/215,178.96 = 43,622.93/x
  3. Step 3: Cross multiply
    143,461.88x = 215,178.96 × 43,622.93
  4. Step 4: Simplify right side
    143,461.88x = 9,386,735,633.66
  5. Step 5: Solve for x
    x = 9,386,735,633.66/143,461.88
  6. Step 6: Final answer
    x = 65,430.18

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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.