Home / 253,035.09-349,188.40-138,314.19

Finding the Fourth Proportional to 253,035.09, 349,188.40 and 138,314.19

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Solution

The fourth proportional to 253,035.09, 349,188.40 and 138,314.19 is: 190,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,035.09 : 349,188.40 = 138,314.19 : x
  2. Step 2: Convert to fraction form
    253,035.09/349,188.40 = 138,314.19/x
  3. Step 3: Cross multiply
    253,035.09x = 349,188.40 × 138,314.19
  4. Step 4: Simplify right side
    253,035.09x = 48,297,710,703.40
  5. Step 5: Solve for x
    x = 48,297,710,703.40/253,035.09
  6. Step 6: Final answer
    x = 190,873.57

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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.