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Finding the Fourth Proportional to 165,681.60, 248,522.40 and 147,710.40

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Solution

The fourth proportional to 165,681.60, 248,522.40 and 147,710.40 is: 221,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,681.60 : 248,522.40 = 147,710.40 : x
  2. Step 2: Convert to fraction form
    165,681.60/248,522.40 = 147,710.40/x
  3. Step 3: Cross multiply
    165,681.60x = 248,522.40 × 147,710.40
  4. Step 4: Simplify right side
    165,681.60x = 36,709,343,112.96
  5. Step 5: Solve for x
    x = 36,709,343,112.96/165,681.60
  6. Step 6: Final answer
    x = 221,565.60

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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.