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Finding the Fourth Proportional to 145,585.94, 218,378.85 and 40,404.88

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Solution

The fourth proportional to 145,585.94, 218,378.85 and 40,404.88 is: 60,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,585.94 : 218,378.85 = 40,404.88 : x
  2. Step 2: Convert to fraction form
    145,585.94/218,378.85 = 40,404.88/x
  3. Step 3: Cross multiply
    145,585.94x = 218,378.85 × 40,404.88
  4. Step 4: Simplify right side
    145,585.94x = 8,823,570,531.32
  5. Step 5: Solve for x
    x = 8,823,570,531.32/145,585.94
  6. Step 6: Final answer
    x = 60,607.30

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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.