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Finding the Fourth Proportional to 145,673.67, 218,510.55 and 40,493.55

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Solution

The fourth proportional to 145,673.67, 218,510.55 and 40,493.55 is: 60,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,673.67 : 218,510.55 = 40,493.55 : x
  2. Step 2: Convert to fraction form
    145,673.67/218,510.55 = 40,493.55/x
  3. Step 3: Cross multiply
    145,673.67x = 218,510.55 × 40,493.55
  4. Step 4: Simplify right side
    145,673.67x = 8,848,267,881.95
  5. Step 5: Solve for x
    x = 8,848,267,881.95/145,673.67
  6. Step 6: Final answer
    x = 60,740.34

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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.