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Finding the Fourth Proportional to 251,151, 346,588.52 and 137,981.04

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Solution

The fourth proportional to 251,151, 346,588.52 and 137,981.04 is: 190,413.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,151 : 346,588.52 = 137,981.04 : x
  2. Step 2: Convert to fraction form
    251,151/346,588.52 = 137,981.04/x
  3. Step 3: Cross multiply
    251,151x = 346,588.52 × 137,981.04
  4. Step 4: Simplify right side
    251,151x = 47,822,643,751.76
  5. Step 5: Solve for x
    x = 47,822,643,751.76/251,151
  6. Step 6: Final answer
    x = 190,413.91

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1.5x scale

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.