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Finding the Fourth Proportional to 163,528.40, 245,638.20 and 157,653.20

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Solution

The fourth proportional to 163,528.40, 245,638.20 and 157,653.20 is: 236,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,528.40 : 245,638.20 = 157,653.20 : x
  2. Step 2: Convert to fraction form
    163,528.40/245,638.20 = 157,653.20/x
  3. Step 3: Cross multiply
    163,528.40x = 245,638.20 × 157,653.20
  4. Step 4: Simplify right side
    163,528.40x = 38,725,648,272.24
  5. Step 5: Solve for x
    x = 38,725,648,272.24/163,528.40
  6. Step 6: Final answer
    x = 236,812.98

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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.