Home / 250,950.36-346,312.08-137,780.40

Finding the Fourth Proportional to 250,950.36, 346,312.08 and 137,780.40

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Solution

The fourth proportional to 250,950.36, 346,312.08 and 137,780.40 is: 190,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,950.36 : 346,312.08 = 137,780.40 : x
  2. Step 2: Convert to fraction form
    250,950.36/346,312.08 = 137,780.40/x
  3. Step 3: Cross multiply
    250,950.36x = 346,312.08 × 137,780.40
  4. Step 4: Simplify right side
    250,950.36x = 47,715,016,907.23
  5. Step 5: Solve for x
    x = 47,715,016,907.23/250,950.36
  6. Step 6: Final answer
    x = 190,137.27

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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.