Home / 208,217.25-287,210.61-153,713.70

Finding the Fourth Proportional to 208,217.25, 287,210.61 and 153,713.70

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Solution

The fourth proportional to 208,217.25, 287,210.61 and 153,713.70 is: 212,029.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,217.25 : 287,210.61 = 153,713.70 : x
  2. Step 2: Convert to fraction form
    208,217.25/287,210.61 = 153,713.70/x
  3. Step 3: Cross multiply
    208,217.25x = 287,210.61 × 153,713.70
  4. Step 4: Simplify right side
    208,217.25x = 44,148,205,542.36
  5. Step 5: Solve for x
    x = 44,148,205,542.36/208,217.25
  6. Step 6: Final answer
    x = 212,029.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.