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Finding the Fourth Proportional to 228,923.04, 343,479.04 and 123,618

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Solution

The fourth proportional to 228,923.04, 343,479.04 and 123,618 is: 185,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,923.04 : 343,479.04 = 123,618 : x
  2. Step 2: Convert to fraction form
    228,923.04/343,479.04 = 123,618/x
  3. Step 3: Cross multiply
    228,923.04x = 343,479.04 × 123,618
  4. Step 4: Simplify right side
    228,923.04x = 42,460,191,966.72
  5. Step 5: Solve for x
    x = 42,460,191,966.72/228,923.04
  6. Step 6: Final answer
    x = 185,478.02

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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.