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Finding the Fourth Proportional to 305,095.10, 421,035.04 and 176,060.35

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Solution

The fourth proportional to 305,095.10, 421,035.04 and 176,060.35 is: 242,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,095.10 : 421,035.04 = 176,060.35 : x
  2. Step 2: Convert to fraction form
    305,095.10/421,035.04 = 176,060.35/x
  3. Step 3: Cross multiply
    305,095.10x = 421,035.04 × 176,060.35
  4. Step 4: Simplify right side
    305,095.10x = 74,127,578,758.12
  5. Step 5: Solve for x
    x = 74,127,578,758.12/305,095.10
  6. Step 6: Final answer
    x = 242,965.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.