Home / 245,897.19-339,334.79-138,468.51

Finding the Fourth Proportional to 245,897.19, 339,334.79 and 138,468.51

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Solution

The fourth proportional to 245,897.19, 339,334.79 and 138,468.51 is: 191,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,897.19 : 339,334.79 = 138,468.51 : x
  2. Step 2: Convert to fraction form
    245,897.19/339,334.79 = 138,468.51/x
  3. Step 3: Cross multiply
    245,897.19x = 339,334.79 × 138,468.51
  4. Step 4: Simplify right side
    245,897.19x = 46,987,182,070.12
  5. Step 5: Solve for x
    x = 46,987,182,070.12/245,897.19
  6. Step 6: Final answer
    x = 191,084.66

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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.