Home / 208,150.17-287,247.21-112,656.86

Finding the Fourth Proportional to 208,150.17, 287,247.21 and 112,656.86

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Solution

The fourth proportional to 208,150.17, 287,247.21 and 112,656.86 is: 155,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,150.17 : 287,247.21 = 112,656.86 : x
  2. Step 2: Convert to fraction form
    208,150.17/287,247.21 = 112,656.86/x
  3. Step 3: Cross multiply
    208,150.17x = 287,247.21 × 112,656.86
  4. Step 4: Simplify right side
    208,150.17x = 32,360,368,722.36
  5. Step 5: Solve for x
    x = 32,360,368,722.36/208,150.17
  6. Step 6: Final answer
    x = 155,466.45

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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.