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Finding the Fourth Proportional to 228,109.64, 342,210 and 70,332.08

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Solution

The fourth proportional to 228,109.64, 342,210 and 70,332.08 is: 105,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,109.64 : 342,210 = 70,332.08 : x
  2. Step 2: Convert to fraction form
    228,109.64/342,210 = 70,332.08/x
  3. Step 3: Cross multiply
    228,109.64x = 342,210 × 70,332.08
  4. Step 4: Simplify right side
    228,109.64x = 24,068,341,096.80
  5. Step 5: Solve for x
    x = 24,068,341,096.80/228,109.64
  6. Step 6: Final answer
    x = 105,512.16

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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.