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Finding the Fourth Proportional to 216,901.50, 299,281.52 and 136,282.32

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Solution

The fourth proportional to 216,901.50, 299,281.52 and 136,282.32 is: 188,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,901.50 : 299,281.52 = 136,282.32 : x
  2. Step 2: Convert to fraction form
    216,901.50/299,281.52 = 136,282.32/x
  3. Step 3: Cross multiply
    216,901.50x = 299,281.52 × 136,282.32
  4. Step 4: Simplify right side
    216,901.50x = 40,786,779,878.73
  5. Step 5: Solve for x
    x = 40,786,779,878.73/216,901.50
  6. Step 6: Final answer
    x = 188,042.87

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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.