Home / 208,030.28-287,080.81-112,536.14

Finding the Fourth Proportional to 208,030.28, 287,080.81 and 112,536.14

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Solution

The fourth proportional to 208,030.28, 287,080.81 and 112,536.14 is: 155,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,030.28 : 287,080.81 = 112,536.14 : x
  2. Step 2: Convert to fraction form
    208,030.28/287,080.81 = 112,536.14/x
  3. Step 3: Cross multiply
    208,030.28x = 287,080.81 × 112,536.14
  4. Step 4: Simplify right side
    208,030.28x = 32,306,964,508.73
  5. Step 5: Solve for x
    x = 32,306,964,508.73/208,030.28
  6. Step 6: Final answer
    x = 155,299.34

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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.