Home / 203,218.42-280,437.74-112,574.10

Finding the Fourth Proportional to 203,218.42, 280,437.74 and 112,574.10

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Solution

The fourth proportional to 203,218.42, 280,437.74 and 112,574.10 is: 155,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,218.42 : 280,437.74 = 112,574.10 : x
  2. Step 2: Convert to fraction form
    203,218.42/280,437.74 = 112,574.10/x
  3. Step 3: Cross multiply
    203,218.42x = 280,437.74 × 112,574.10
  4. Step 4: Simplify right side
    203,218.42x = 31,570,026,186.53
  5. Step 5: Solve for x
    x = 31,570,026,186.53/203,218.42
  6. Step 6: Final answer
    x = 155,350.22

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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.