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Finding the Fourth Proportional to 238,989.71, 358,361.06 and 70,488.59

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Solution

The fourth proportional to 238,989.71, 358,361.06 and 70,488.59 is: 105,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,989.71 : 358,361.06 = 70,488.59 : x
  2. Step 2: Convert to fraction form
    238,989.71/358,361.06 = 70,488.59/x
  3. Step 3: Cross multiply
    238,989.71x = 358,361.06 × 70,488.59
  4. Step 4: Simplify right side
    238,989.71x = 25,260,363,686.06
  5. Step 5: Solve for x
    x = 25,260,363,686.06/238,989.71
  6. Step 6: Final answer
    x = 105,696.45

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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.