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Finding the Fourth Proportional to 607,567.80, 911,480.87 and 208,101.32

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Solution

The fourth proportional to 607,567.80, 911,480.87 and 208,101.32 is: 312,196.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,567.80 : 911,480.87 = 208,101.32 : x
  2. Step 2: Convert to fraction form
    607,567.80/911,480.87 = 208,101.32/x
  3. Step 3: Cross multiply
    607,567.80x = 911,480.87 × 208,101.32
  4. Step 4: Simplify right side
    607,567.80x = 189,680,366,603.84
  5. Step 5: Solve for x
    x = 189,680,366,603.84/607,567.80
  6. Step 6: Final answer
    x = 312,196.21

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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.