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Finding the Fourth Proportional to 228,623.76, 342,810.36 and 70,808.40

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Solution

The fourth proportional to 228,623.76, 342,810.36 and 70,808.40 is: 106,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,623.76 : 342,810.36 = 70,808.40 : x
  2. Step 2: Convert to fraction form
    228,623.76/342,810.36 = 70,808.40/x
  3. Step 3: Cross multiply
    228,623.76x = 342,810.36 × 70,808.40
  4. Step 4: Simplify right side
    228,623.76x = 24,273,853,095.02
  5. Step 5: Solve for x
    x = 24,273,853,095.02/228,623.76
  6. Step 6: Final answer
    x = 106,173.80

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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.