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Finding the Fourth Proportional to 141,384, 212,076 and 42,888

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Solution

The fourth proportional to 141,384, 212,076 and 42,888 is: 64,332

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,384 : 212,076 = 42,888 : x
  2. Step 2: Convert to fraction form
    141,384/212,076 = 42,888/x
  3. Step 3: Cross multiply
    141,384x = 212,076 × 42,888
  4. Step 4: Simplify right side
    141,384x = 9,095,515,488
  5. Step 5: Solve for x
    x = 9,095,515,488/141,384
  6. Step 6: Final answer
    x = 64,332

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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.