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Finding the Fourth Proportional to 144,385.96, 216,615.84 and 55,615.63

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Solution

The fourth proportional to 144,385.96, 216,615.84 and 55,615.63 is: 83,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,385.96 : 216,615.84 = 55,615.63 : x
  2. Step 2: Convert to fraction form
    144,385.96/216,615.84 = 55,615.63/x
  3. Step 3: Cross multiply
    144,385.96x = 216,615.84 × 55,615.63
  4. Step 4: Simplify right side
    144,385.96x = 12,047,226,409.58
  5. Step 5: Solve for x
    x = 12,047,226,409.58/144,385.96
  6. Step 6: Final answer
    x = 83,437.66

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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.