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Finding the Fourth Proportional to 368,869.60, 553,822.80 and 228,901.60

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Solution

The fourth proportional to 368,869.60, 553,822.80 and 228,901.60 is: 343,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,869.60 : 553,822.80 = 228,901.60 : x
  2. Step 2: Convert to fraction form
    368,869.60/553,822.80 = 228,901.60/x
  3. Step 3: Cross multiply
    368,869.60x = 553,822.80 × 228,901.60
  4. Step 4: Simplify right side
    368,869.60x = 126,770,925,036.48
  5. Step 5: Solve for x
    x = 126,770,925,036.48/368,869.60
  6. Step 6: Final answer
    x = 343,674.09

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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.