Home / 208,276.86-287,423.40-112,783.56

Finding the Fourth Proportional to 208,276.86, 287,423.40 and 112,783.56

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Solution

The fourth proportional to 208,276.86, 287,423.40 and 112,783.56 is: 155,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,276.86 : 287,423.40 = 112,783.56 : x
  2. Step 2: Convert to fraction form
    208,276.86/287,423.40 = 112,783.56/x
  3. Step 3: Cross multiply
    208,276.86x = 287,423.40 × 112,783.56
  4. Step 4: Simplify right side
    208,276.86x = 32,416,634,279.30
  5. Step 5: Solve for x
    x = 32,416,634,279.30/208,276.86
  6. Step 6: Final answer
    x = 155,642.03

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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.