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Finding the Fourth Proportional to 251,332, 346,838.88 and 143,903.68

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Solution

The fourth proportional to 251,332, 346,838.88 and 143,903.68 is: 198,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,332 : 346,838.88 = 143,903.68 : x
  2. Step 2: Convert to fraction form
    251,332/346,838.88 = 143,903.68/x
  3. Step 3: Cross multiply
    251,332x = 346,838.88 × 143,903.68
  4. Step 4: Simplify right side
    251,332x = 49,911,391,199.08
  5. Step 5: Solve for x
    x = 49,911,391,199.08/251,332
  6. Step 6: Final answer
    x = 198,587.49

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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.