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Finding the Fourth Proportional to 435,689.60, 653,631.60 and 169,426.40

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Solution

The fourth proportional to 435,689.60, 653,631.60 and 169,426.40 is: 254,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,689.60 : 653,631.60 = 169,426.40 : x
  2. Step 2: Convert to fraction form
    435,689.60/653,631.60 = 169,426.40/x
  3. Step 3: Cross multiply
    435,689.60x = 653,631.60 × 169,426.40
  4. Step 4: Simplify right side
    435,689.60x = 110,742,448,914.24
  5. Step 5: Solve for x
    x = 110,742,448,914.24/435,689.60
  6. Step 6: Final answer
    x = 254,177.40

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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.