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Finding the Fourth Proportional to 439,956.95, 607,140.57 and 238,752.95

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Solution

The fourth proportional to 439,956.95, 607,140.57 and 238,752.95 is: 329,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,956.95 : 607,140.57 = 238,752.95 : x
  2. Step 2: Convert to fraction form
    439,956.95/607,140.57 = 238,752.95/x
  3. Step 3: Cross multiply
    439,956.95x = 607,140.57 × 238,752.95
  4. Step 4: Simplify right side
    439,956.95x = 144,956,599,116.48
  5. Step 5: Solve for x
    x = 144,956,599,116.48/439,956.95
  6. Step 6: Final answer
    x = 329,479.06

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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.