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Finding the Fourth Proportional to 163,934.40, 245,901.60 and 147,345.60

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Solution

The fourth proportional to 163,934.40, 245,901.60 and 147,345.60 is: 221,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,934.40 : 245,901.60 = 147,345.60 : x
  2. Step 2: Convert to fraction form
    163,934.40/245,901.60 = 147,345.60/x
  3. Step 3: Cross multiply
    163,934.40x = 245,901.60 × 147,345.60
  4. Step 4: Simplify right side
    163,934.40x = 36,232,518,792.96
  5. Step 5: Solve for x
    x = 36,232,518,792.96/163,934.40
  6. Step 6: Final answer
    x = 221,018.40

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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.