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Finding the Fourth Proportional to 388,924, 583,484.42 and 108,441.25

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Solution

The fourth proportional to 388,924, 583,484.42 and 108,441.25 is: 162,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,924 : 583,484.42 = 108,441.25 : x
  2. Step 2: Convert to fraction form
    388,924/583,484.42 = 108,441.25/x
  3. Step 3: Cross multiply
    388,924x = 583,484.42 × 108,441.25
  4. Step 4: Simplify right side
    388,924x = 63,273,779,860.33
  5. Step 5: Solve for x
    x = 63,273,779,860.33/388,924
  6. Step 6: Final answer
    x = 162,689.32

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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.