Home / 208,209.86-287,331.90-112,718.60

Finding the Fourth Proportional to 208,209.86, 287,331.90 and 112,718.60

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Solution

The fourth proportional to 208,209.86, 287,331.90 and 112,718.60 is: 155,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,209.86 : 287,331.90 = 112,718.60 : x
  2. Step 2: Convert to fraction form
    208,209.86/287,331.90 = 112,718.60/x
  3. Step 3: Cross multiply
    208,209.86x = 287,331.90 × 112,718.60
  4. Step 4: Simplify right side
    208,209.86x = 32,387,649,503.34
  5. Step 5: Solve for x
    x = 32,387,649,503.34/208,209.86
  6. Step 6: Final answer
    x = 155,552.91

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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.