Home / 253,210.07-349,436.00-138,499.49

Finding the Fourth Proportional to 253,210.07, 349,436.00 and 138,499.49

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Solution

The fourth proportional to 253,210.07, 349,436.00 and 138,499.49 is: 191,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,210.07 : 349,436.00 = 138,499.49 : x
  2. Step 2: Convert to fraction form
    253,210.07/349,436.00 = 138,499.49/x
  3. Step 3: Cross multiply
    253,210.07x = 349,436.00 × 138,499.49
  4. Step 4: Simplify right side
    253,210.07x = 48,396,709,007.48
  5. Step 5: Solve for x
    x = 48,396,709,007.48/253,210.07
  6. Step 6: Final answer
    x = 191,132.64

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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.