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Finding the Fourth Proportional to 228,970.30, 343,455.45 and 104,554.30

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Solution

The fourth proportional to 228,970.30, 343,455.45 and 104,554.30 is: 156,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,970.30 : 343,455.45 = 104,554.30 : x
  2. Step 2: Convert to fraction form
    228,970.30/343,455.45 = 104,554.30/x
  3. Step 3: Cross multiply
    228,970.30x = 343,455.45 × 104,554.30
  4. Step 4: Simplify right side
    228,970.30x = 35,909,744,155.94
  5. Step 5: Solve for x
    x = 35,909,744,155.94/228,970.30
  6. Step 6: Final answer
    x = 156,831.45

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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.