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Finding the Fourth Proportional to 219,803.42, 329,701.52 and 70,041.65

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Solution

The fourth proportional to 219,803.42, 329,701.52 and 70,041.65 is: 105,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,803.42 : 329,701.52 = 70,041.65 : x
  2. Step 2: Convert to fraction form
    219,803.42/329,701.52 = 70,041.65/x
  3. Step 3: Cross multiply
    219,803.42x = 329,701.52 × 70,041.65
  4. Step 4: Simplify right side
    219,803.42x = 23,092,836,994.90
  5. Step 5: Solve for x
    x = 23,092,836,994.90/219,803.42
  6. Step 6: Final answer
    x = 105,061.32

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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.