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Finding the Fourth Proportional to 201,726.70, 302,590.05 and 103,422.70

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Solution

The fourth proportional to 201,726.70, 302,590.05 and 103,422.70 is: 155,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,726.70 : 302,590.05 = 103,422.70 : x
  2. Step 2: Convert to fraction form
    201,726.70/302,590.05 = 103,422.70/x
  3. Step 3: Cross multiply
    201,726.70x = 302,590.05 × 103,422.70
  4. Step 4: Simplify right side
    201,726.70x = 31,294,679,964.14
  5. Step 5: Solve for x
    x = 31,294,679,964.14/201,726.70
  6. Step 6: Final answer
    x = 155,134.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.