Home / 208,308.48-287,464.20-112,812.96

Finding the Fourth Proportional to 208,308.48, 287,464.20 and 112,812.96

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Solution

The fourth proportional to 208,308.48, 287,464.20 and 112,812.96 is: 155,681.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,308.48 : 287,464.20 = 112,812.96 : x
  2. Step 2: Convert to fraction form
    208,308.48/287,464.20 = 112,812.96/x
  3. Step 3: Cross multiply
    208,308.48x = 287,464.20 × 112,812.96
  4. Step 4: Simplify right side
    208,308.48x = 32,429,687,296.03
  5. Step 5: Solve for x
    x = 32,429,687,296.03/208,308.48
  6. Step 6: Final answer
    x = 155,681.07

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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.