Home / 145,565.31-218,348.07-40,384.38

Finding the Fourth Proportional to 145,565.31, 218,348.07 and 40,384.38

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Solution

The fourth proportional to 145,565.31, 218,348.07 and 40,384.38 is: 60,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,565.31 : 218,348.07 = 40,384.38 : x
  2. Step 2: Convert to fraction form
    145,565.31/218,348.07 = 40,384.38/x
  3. Step 3: Cross multiply
    145,565.31x = 218,348.07 × 40,384.38
  4. Step 4: Simplify right side
    145,565.31x = 8,817,851,431.15
  5. Step 5: Solve for x
    x = 8,817,851,431.15/145,565.31
  6. Step 6: Final answer
    x = 60,576.60

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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.