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Finding the Fourth Proportional to 145,573.69, 218,360.63 and 40,392.76

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Solution

The fourth proportional to 145,573.69, 218,360.63 and 40,392.76 is: 60,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,573.69 : 218,360.63 = 40,392.76 : x
  2. Step 2: Convert to fraction form
    145,573.69/218,360.63 = 40,392.76/x
  3. Step 3: Cross multiply
    145,573.69x = 218,360.63 × 40,392.76
  4. Step 4: Simplify right side
    145,573.69x = 8,820,188,076.12
  5. Step 5: Solve for x
    x = 8,820,188,076.12/145,573.69
  6. Step 6: Final answer
    x = 60,589.16

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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.