Home / 251,354.21-346,860.02-138,176.15

Finding the Fourth Proportional to 251,354.21, 346,860.02 and 138,176.15

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Solution

The fourth proportional to 251,354.21, 346,860.02 and 138,176.15 is: 190,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,354.21 : 346,860.02 = 138,176.15 : x
  2. Step 2: Convert to fraction form
    251,354.21/346,860.02 = 138,176.15/x
  3. Step 3: Cross multiply
    251,354.21x = 346,860.02 × 138,176.15
  4. Step 4: Simplify right side
    251,354.21x = 47,927,780,763.66
  5. Step 5: Solve for x
    x = 47,927,780,763.66/251,354.21
  6. Step 6: Final answer
    x = 190,678.25

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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.