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Finding the Fourth Proportional to 138,050.51, 207,075.51 and 38,210.42

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Solution

The fourth proportional to 138,050.51, 207,075.51 and 38,210.42 is: 57,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050.51 : 207,075.51 = 38,210.42 : x
  2. Step 2: Convert to fraction form
    138,050.51/207,075.51 = 38,210.42/x
  3. Step 3: Cross multiply
    138,050.51x = 207,075.51 × 38,210.42
  4. Step 4: Simplify right side
    138,050.51x = 7,912,441,173.44
  5. Step 5: Solve for x
    x = 7,912,441,173.44/138,050.51
  6. Step 6: Final answer
    x = 57,315.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.