Home / 238,106.65-328,576.89-130,678.51

Finding the Fourth Proportional to 238,106.65, 328,576.89 and 130,678.51

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Solution

The fourth proportional to 238,106.65, 328,576.89 and 130,678.51 is: 180,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,106.65 : 328,576.89 = 130,678.51 : x
  2. Step 2: Convert to fraction form
    238,106.65/328,576.89 = 130,678.51/x
  3. Step 3: Cross multiply
    238,106.65x = 328,576.89 × 130,678.51
  4. Step 4: Simplify right side
    238,106.65x = 42,937,938,405.63
  5. Step 5: Solve for x
    x = 42,937,938,405.63/238,106.65
  6. Step 6: Final answer
    x = 180,330.70

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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.