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Finding the Fourth Proportional to 145,441.61, 218,165.15 and 45,599.59

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Solution

The fourth proportional to 145,441.61, 218,165.15 and 45,599.59 is: 68,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,441.61 : 218,165.15 = 45,599.59 : x
  2. Step 2: Convert to fraction form
    145,441.61/218,165.15 = 45,599.59/x
  3. Step 3: Cross multiply
    145,441.61x = 218,165.15 × 45,599.59
  4. Step 4: Simplify right side
    145,441.61x = 9,948,240,618.88
  5. Step 5: Solve for x
    x = 9,948,240,618.88/145,441.61
  6. Step 6: Final answer
    x = 68,400.24

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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.